"Montanans believe in the right to make a good life for their families. How they define a family should be their business and their business alone," Tester wrote. "I’m 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's statement follows similar announcements from a number of senators in recent days. Democratic Sens. Mark BegichMark BegichSenate GOP deeply concerned over Trump effect Ex-Sen. Kay Hagan joins lobby firm Unable to ban Internet gambling, lawmakers try for moratorium MORE (Alaska), Claire McCaskillClaire McCaskillThe Trail 2016: Meet and greet and grief McCaskill: I wonder if people voting for Trump are embarrassed VA opposes bill aimed at helping vets in mustard gas experiments MORE (Mo.), Jay RockefellerJay RockefellerLobbying world Overnight Tech: Senators place holds on FCC commissioner Overnight Tech: Senate panel to vote on Dem FCC commissioner MORE (W.Va.), and Mark WarnerMark WarnerOvernight Cybersecurity: Calls grow for encryption panel Homeland Security Committee pushes encryption commission in new report The Hill's 12:30 Report MORE (Va.) have all come out in support of same-sex marriage.
Those announcements follow two other similar statements by Sen. Rob PortmanRob PortmanClean energy group backs two GOP incumbents Overnight Finance: Trump threatens NAFTA withdrawal | Senate poised for crucial Puerto Rico vote | Ryan calls for UK trade deal | Senate Dems block Zika funding deal Overnight Energy: Volkswagen reaches .7B settlement over emissions MORE (R-Ohio) and former Secretary of State Hillary ClintonHillary Rodham ClintonTrump: 'I’m just flabbergasted’ by Clinton-Lynch meet AFL-CIO head: Trump’s ‘a fraud’ Sanders skirts Biden's claim that he'll endorse Clinton MORE who, about a week earlier, both said they support same-sex marriage.
Tester's announcement on Tuesday came the same day that the Supreme Court began hearing arguments on a case on same-sex marriage.
Sen. Tester: I'm 'proud' to support same-sex marriage
Tester announced his support in a message on his Facebook on Tuesday.