Editing Eugene McCarthy (section)

===Further activism===
[[File:Eugene McCarthy 1968 (b).jpg|thumb|McCarthy in 1968]]
McCarthy opposed Watergate-era campaign finance laws, becoming a plaintiff in the landmark case ''[[Buckley v. Valeo]]'', 424 U.S. 1 (1976), in which the [[U.S. Supreme Court]] held that certain provisions of federal campaign finance laws were unconstitutional.<ref>{{cite web|url=http://www.campaignfinancesite.org/court/buckley1.html|title=Campaignfinancesite.org|access-date=April 26, 2006|archive-url=https://web.archive.org/web/20060717105323/http://www.campaignfinancesite.org/court/buckley1.html|archive-date=July 17, 2006|url-status=dead}}</ref> McCarthy, the [[New York Civil Liberties Union]], philanthropist [[Stewart Mott]], the [[Conservative Party of New York State]], the [[Mississippi Republican Party]], and the [[Libertarian Party (United States)|Libertarian Party]] were the plaintiffs in ''Buckley'', becoming key players in killing campaign spending limits and public financing of political campaigns.

In [[1980 United States presidential election|1980]], dismayed by what he saw as the abject failure of [[Jimmy Carter]]'s presidency (he later said that "he was the worst president we ever had"),<ref>{{cite web|last=Hitchens |first=Christopher |url=http://www.slate.com/id/2166661/ |title=The latest absurdities to emerge from Jimmy Carter's big, smug mouth. - By Christopher Hitchens - Slate Magazine |publisher=Slate.com |date=May 21, 2007 |access-date=July 20, 2010}}</ref> he appeared in a campaign ad for [[Libertarian Party (United States)|Libertarian]] candidate [[Ed Clark]] and wrote the introduction to Clark's campaign book.<ref>[[Jesse Walker|Walker, Jesse]] (August 31, 2010) [http://reason.com/blog/2010/08/31/the-cold-crisp-taste-of-koch The Cold, Crisp Taste of Koch], ''[[Reason magazine|Reason]]''</ref> He eventually endorsed [[Ronald Reagan]] for president.<ref>{{cite news |title=Remembering Eugene McCarthy |url=https://www.pbs.org/newshour/bb/remember/july-dec05/mccarthy_12-12.html |archive-url=https://web.archive.org/web/20060218074245/https://www.pbs.org/newshour/bb/remember/july-dec05/mccarthy_12-12.html |archive-date=February 18, 2006 |date=December 12, 2005 |work=Newshour with Jim Lehrer |publisher=PBS}}</ref>