The junior United States Senator and former Representative from Vermont, Bernie Sanders, formally announced his 2016 presidential campaign on May 26, 2015 on the foundation of reversing "obscene levels" of income and wealth inequality. Sanders stated that he would run an issue-oriented and positive campaign, focusing his efforts on getting corporate money out of politics, raising taxes on the wealthy, guaranteeing tuition-free higher education, incorporating a single-payer healthcare system, fighting against climate change, and other key issues.
Senator Sanders sparked a grassroots movement by demonstrating honesty, commitment, and by presenting himself as a genuine politician. Sanders didn't have the resources to run a massive presidential campaign across the United States, so he utilized passionate volunteer organizers across the nation to build the movement. Millions inspired by Sanders were able to elevate the campaign to challenge the Democratic front-runner, former Secretary of State "Hillary Clinton. Sanders used his grassroots campaign to receive more than 7 million individual contributions averaging $27, effectively breaking "Barack Obama's previous individual contribution record in 2008.
UK grassroots aid movement
In 2015 the refugee crisis became front-page news across the world. Affected by images of the plight of refugees arriving and travelling across Europe, the grassroots aid movement (otherwise known as the people-to-people, or people solidarity movement), consisting of thousands of private individuals with no prior NGO experience, began in earnest to self-organise and form groups taking aid to areas of displaced persons. The first wave of early responders reached camps in Calais and Dunkirk in August 2015 and joined forces with existing local charities supporting the inhabitants there. Other volunteers journeyed to support refugees across the Balkans, Macedonia, and the Greek islands. Grassroots aid filled voids and saved lives by plugging gaps in the system between governments and existing charities.
Issues with horizontal movements
Grassroots movements are usually criticized because the recent rise in social media has resulted in leaderless and horizontal movements. Some argue that social movements without a clear hierarchy are far less effective and are more likely to die off.
"Astroturfing refers to political action that is meant to appear to be grassroots, that is spontaneous and local, but in fact comes from an outside organization, such as a corporation or think tank.  It is named after "AstroTurf, the iconic brand of "artificial grass. Astroturfing means pretending to be a grassroots movement, when in reality the agenda and strategy are controlled by a hidden, non-grassroots organization. In this manner, a faux show is presented, consisting of robotic individuals pretending to be voicing their own opinions. An example of astroturfing was the "ExxonMobil Corporation's push to disseminate false information about climate change. ExxonMobil was largely successful both in disseminating the information through think tanks and in disguising the true nature of the think tanks.
More controversial examples of astroturfing often exhibit some characteristics of a real grassroots organization, but also characteristics of astroturf. Many of President Obama's efforts, for example, have been deemed grassroots because of their focus on involving the electorate at large. Critics of Obama have argued that some of these methods are in fact astroturfing because they believe that Obama faked the grassroots support. For example, the "Reason Foundation has accused Obama of planting astroturf supporters in town hall meetings. Many movements and organizations must be placed on a continuum between grassroots and astroturf instead of labeled entirely as one or the other. For example, Australia's Convoy of No Confidence, a movement seeking to force an early election in 2011, incorporated elements of grassroots infrastructure in its reliance on the anger and discontentment of the participants. It also had elements of astroturf, namely the large extent to which it relied on support from political elites in the opposition party. 
The "Tea Party, a conservative force in American politics that began in 2009, is also a controversial example of astroturfing. Critics, notably including Democrats President Barack Obama and Former "Speaker of the House "Nancy Pelosi, dismissed the Tea Party as Astroturf. They say that the movement purports to represent large swaths of America when in reality it comes from a select few billionaires seeking policies favorable to themselves. The Tea Party has defended itself, arguing that it comes out of broad popular support and widespread anger at the Democratic Party and disenchantment with the GOP. Defenders of the Tea Party cite polls that find substantial support, indicating that the movement has some basis in grassroots politics. Critics point to the corporate influence on the Tea Party, which they believe indicates that the movement is more top-down than the grassroots rhetoric would suggest. The Tea Party can be considered grassroots to the extent that it comes from the people, but it is considered astroturfing to the extent that it is shaped by corporations and particularly wealthy individuals.
|This section needs additional citations for "verification. (April 2016) ("Learn how and when to remove this template message)|
- "Abahlali baseMjondolo in South Africa
- "Axis of Justice in USA
- "Bhumi Uchhed Pratirodh Committee in India
- "Earth Hour International - Often recognized as the world's largest grass roots movement
- "EZLN in Mexico
- "Fanmi Lavalas in Haiti
- "GlobalGiving — international
- "Homeless Workers' Movement in Brazil
- "Landless Peoples Movement in South Africa
- "Landless Workers' Movement in Brazil
- "Movement for Justice en el Barrio in USA
- "Narmada Bachao Andolan in India
- "Western Cape Anti-Eviction Campaign in South Africa
- "Bernie Sanders presidential campaign, 2016: this has been deemed by some as a grassroots campaign because of its focus on small donations, massive rallies, and other grassroots style politicking methods.
- "Community film
- "Community organizing
- "Fourth Estate
- "Freedom of the press
- "Grassroots democracy
- "Grassroots fundraising
- "List of newspapers in the United States
- "Press conference
- "Public relations
- "Saul Alinsky
- Use in sport - The term "grassroots" is used by a number of sporting organizational bodies to reference the lowest, most elementary form of the game that anyone can play. Focusing on the grassroots of a sporting code can lead to greater participation numbers, greater support of professional teams/athletes and ultimately provide performance and financial benefits to the organization to invest into the growth and development of the sport. Some examples of this are "FIFA's Grassroots Programme and the "Football Federation Australia's "Goals for Grassroots" initiative.
- Cite error: The named reference
:3was invoked but never defined (see the "help page).
- Cite error: The named reference
:4was invoked but never defined (see the "help page).
- "NEIGHBORHOOD REGENERATION AT THE GRASSROOTS PARTICIPATION: INCUBATORS' CO-C...: Start Your Search!". eds.b.ebscohost.com. Retrieved 2016-10-26.
- Poggi, Sarah. "Grassroots Movements" (PDF).
- Wallace, Michele (1992). Black Popular Culture. Seattle: Bay Press. p. 45. "ISBN "978-1-56584-459-9.
- Students for a Democratic Society. "Port Huron Statement". Retrieved 28 November 2015.
- "Direct and Participatory Democracy at Grassroots Level" (PDF). European Institute of Public Administration. Retrieved 28 November 2015.
- Courtesy: Eigen's Political & Historical Quotations "Beveridge, Albert J.". 2006-05-20.
- "New-York tribune. (New York [N.Y.]) 1866-1924, September 09, 1907, Page 4, Image 4". loc.gov.
- "The Salt Lake herald. (Salt Lake City [Utah]) 1870-1909, September 25, 1903, Last Edition, Page 6, Image 6". loc.gov.
- Baletti, Brenda; Wolford, W; Johnson, Tamara. "Late Mobilization: Transnational Peasant Networks and Grassroots Organizing in Brazil and South Africa". Journal of Agrarian Change. 8 (2-3): 290–314. "doi:10.1111/j.1471-0366.2008.00171.x. Retrieved 26 October 2015.
- Wang, Xu (1997). "Mutual Empowerment of State and Peasantry: Grassroots Democracy in Rural China". World Development. 25 (9): 1431–1442. "doi:10.1016/s0305-750x(97)00047-8.
- Cnaan, Ram; Milofsky, Carl (2007). Handbook of Community Movements and Local Organization. New York: Springer. p. 362. "ISBN "978-0-387-75729-2.
- Taylor, Dorceta; Bullard, Robert (1993). Confronting Environmental Racism: Voices from the Grassroots. Cambridge, MA: South End Press. p. 53. "ISBN "0-89608-446-9.
- "Grassroots Campaigns: Our History". Grassroots Campaign. Retrieved 13 October 2015.
- Press, Associated (2015-04-29). "Bernie Sanders confirms presidential run and damns America's inequities". The Guardian. "ISSN 0261-3077. Retrieved 2016-10-26.
- "VIDEO: Bernie Sanders announces run for president". Burlington Free Press. Retrieved 2016-10-26.
- "Issues - Bernie Sanders". Bernie Sanders. Retrieved 2016-10-27.
- "Sanders: People Ask Me To Go After Clinton For FBI Investigation And Foundation Money, But I Won't". www.realclearpolitics.com. Retrieved 2016-10-27.
- "Feeling the Bern: Start Your Search!". eds.b.ebscohost.com. Retrieved 2016-11-18.
- "Bernie versus Hillary: Start Your Search!". eds.b.ebscohost.com. Retrieved 2016-11-18.
- "What Hillary Can Learn From Bernie: Start Your Search!". eds.b.ebscohost.com. Retrieved 2016-11-18.
- S, Brian Hanley Political reporter covering the Bernie; Campaign, Ers (2016-04-12). "Bernie Sanders Received More Individual Campaign Contributions Than Obama's Entire 2008 Campaign". The Huffington Post. Retrieved 2016-11-18.
- "Bringing the Organization Back In: Social Media and Social Movements". Berkeley Journal of Sociology. 2014-11-03. Retrieved 2016-11-18.
- Barkan, Joanne (2012). "Hired Guns on Astroturf: How to Buy and Sell School Reform.". Dissent. 59 (2): 49–57. "doi:10.1353/dss.2012.0053. Retrieved 16 November 2015.
- Walter Truett Anderson (January 5, 1996). "Astroturf – The Big Business of Fake Grassroots Politics".
- Cho, Charles (3 July 2011). "Astroturfing Global Warming: It Isn't Always Greener on the Other Side of the Fence". Journal of Business Ethics. 104 (4): 571–587. "doi:10.1007/s10551-011-0950-6. Retrieved 18 November 2015.
- Wear, Rae (2014). "Astroturf and populism in Australia: The Convoy of No Confidence". Australian Journal of Political Science. 49 (1): 54–67. "doi:10.1080/10361146.2013.864598. Retrieved 28 November 2015.
- Formisano, Ronald (Feb 14, 2012). The Tea Party. Baltimore: JHU Press. "ISBN "978-1-4214-0610-7. Retrieved 28 November 2015.
- Gambino, Lauren; Jacobs, Ben. ""Grassroots movement working": Bernie Sanders gains on the Clinton Machine". The Guardian. Retrieved 16 November 2015.
- "Opinion: For grassroots sport to grow, funding model must be overhauled - Sports Business Insider". sportsbusinessinsider.com.au.
- "FIFA Courses - FIFA.com". FIFA.com.
- Staff writers (April 3, 2014). "FFA Play Football". Football Federation Australia.
- Ekins, Paul (1992.) A new world order: grassroots movements for global change. Routledge. "ISBN 0-415-07115-1
- Fox, Jonathan A.; Brown David, L. (1998.) The struggle for accountability: the World Bank, NGOs, and grassroots movements. Massachusetts Institute of Technology. "ISBN 0-262-56117-4
- The Citizen's Handbook – guides to grassroots/community organizing