HELENA, Mont. -

U.S. Sen. Jon Tester says he now supports gay marriage.
    
Tester released a brief statement Tuesday as the U.S. Supreme Court heard arguments over California's ban on same-sex marriage.
    
The Montana Democrat says he is "proud to support marriage equality because no one should be able to tell a Montanan or any American who they can love and who they can marry."
    
Tester was re-elected just last year. He previously opposed gay marriage, pointed to the decision by Montana voters in 2004 to amend the Constitution to prevent same-sex marriages.
    
Other prominent politicians also have recently stated their support of gay marriage, including U.S. Sens. Claire McCaskill of Missouri, Rob Portman of Ohio and Mark Warner of Virginia.