Joe Donnelly changes views, supports same-sex marriage

Indiana senator Joe Donnelly is changing his views on same-sex marriage.

The moderate democrat now says he supports same-sex marriage.

"With the recent supreme court arguments and accompanying public discussion of same-sex marriage, I have been thinking about my past positions and votes. In doing so, I have concluded that the right thing to do is support marriage equality for all," said Donnelly on his Facebook page.

Donnelly's announcement leaves just four senate democrats who have not backed same-sex marriage.