The list of U.S. politicians advocating for same-sex marriage or an end to workplace discrimination against gays — a measure passed by the Senate on Nov. 7 — is growing. Here are a few prominent political supporters.

Sen. Rob Portman The Ohio Republican said he changed his view on gay marriage after his son, Will, a Yale student, came out. "If two people are prepared to make a lifetime commitment . . . the government shouldn’t deny them the opportunity to get married,'' Portman said on March 15. On Nov. 7, he was among 64 senators who voted to ban workplace discrimination based on sexual orientation or gender identity. Alex Brandon/AP