Matt Cartwright, who until now supported civil unions, said his views have changed.
During the Republican convention, a TV ad with San Diego's mayor will highlight why the party should embrace marriage rights for same-sex couples.
More than 100 organizations have joined the coalition working to pass the marriage equality referendum.
David Pocock says he supports marriage equality and won't wed his girlfriend until everyone in Australia has the freedom to marry.
The head of Liberty Counsel praises Hawaii's marriage ruling and says idiotic things while doing so.
Marriage equality advocates applauded the language that will appear on the November ballot, while opponents criticized the wording.
A poll from The Washington Post shows the Tea Party is the least likely political group to support marriage equality.
Young Conservatives for the Freedom to Marry sent a letter to Virginia Gov. Bob McDonnell, asking the RNC Platform Committee to resist opposing marriage equality in its party platform.
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