Massachusetts Governor Deval Patrick and senate candidate Elizabeth Warren will lead a group of supporters of President Barack Obama at Boston Gay Pride on Saturday.

The AP reported that Warren, Patrick and the Obama for America volunteers will gather on Boylston Street between Dartmouth and Clarendon Streets before the noon kick off of the 42nd annual parade.

Patrick, a national co-chair for the Obama campaign, and Warren are strong supporters of gay rights, including equal marriage rights for gay and lesbian couples.

“Marriage equality is morally right,” Warren said in March.

The Democratic contingent has plenty to celebrate. Last month, Obama became the first sitting president to endorse marriage equality. Three legal victories followed. Two found the Defense of Marriage Act (DOMA), which bars the federal government from recognizing the legal marriages of gay coupes, to be unconstitutional. Another upheld a lower court's ruling which found that Proposition 8, California's gay marriage ban, violates the constitutional rights of gay couples who wish to marry in the state.

(Related: Kerli to perform at Boston Gay Pride.)