From Wayne Root, 2008 Libertarian Party Vice-Presidential nominee:
Wayne will be appearing on Fox & Friends, the #1 morning show on cable TV on Sunday at 7:50 AM ET/4:50 AM PT to discuss his commentary “The Party That Booed God” and why Wayne, the former Libertarian Vice Presidential nominee, has just resigned from the LP to re-join The Republican Party as a Tea Party Libertarian Republican, and is endorsing Mitt Romney for President of the United States.
Root resigned yesterday from his LP leadership positions, but his email signature still said he “now serves as Chairman of the Libertarian National Congressional Committee”.
Root would not be the first member of a previous LP presidential ticket to subsequently endorse a Republican for President. 1972 LP presidential nominee John Hospers endorsed George W. Bush in 2004, and 2008 LP presidential nominee Bob Barr endorsed Romney in May of this year. 1988 LP presidential nominee Ron Paul later returned to the GOP, but Paul has not endorsed any Republican nominee since Ronald Reagan.
Update 7Pm: In the comments below, Gene Berkman cites cites several other examples of LP (vice-)presidential nominees subsequently supporting Republicans for president:
John Hospers endorsed the re-election of Ronald Reagan in 1984. Roger MacBride, 1976 nominee of The Libertarian Party, returned to the Republican Party and helped organize the Republican Liberty Caucus. According to FEC filings, Ed Clark (1980 nominee) and David Bergland (1984 nominee) contributed to Ron Paul’s primary campaign for President in 2008, as did David Nolan, founder of The Libertarian Party. David Koch was a Co-Chair of the Bob Dole for President committee in 1996, he raised money for George W Bush in 2000, and he was a delegate to this year’s Republican National Convention supporting George Romney.