Massachusetts Republican gubernatorial hopeful Charlie Baker has chosen state Senator Richard R. Tisei, an openly gay man, to be his running mate.

The announcement was posted Monday morning on the candidate's website.

“Richard has years of experience fighting for the taxpayer on Beacon Hill and I'm thrilled to have him on the team,” Baker said.

In a November 19 interview with the Boston Globe, Tisei publicly disclosed his sexuality, saying: “It is not exactly a news flash. I don't think people really care these days.”

At 22, Tisei was the youngest Republican to be elected to the House. He moved to the Senate in 1991.

Baker is considered a moderate himself, in favor of gay marriage and a woman's right to choose. The pair will face store magnate Christy Mihos in the Republican primary.

Being gay in Massachusetts is becoming increasingly irrelevant. Gay men and lesbians won the right to marry in the state five years ago.