Portman, the first Republican U.S. senator to endorse marriage equality, says he'll run for reelection to the Senate instead.
Provisional and absentee ballots cast for California's 52nd district put Rep. Scott Peters over the top to keep his seat.
The election results may sting for some, but HRC president Chad Griffin says it's more important than ever to keep fighting on.
If the Democrats had won, they presented a clear path toward marriage equality in the state.
Healey, who was part of the team that brought marriage equality to Massachusetts, will be the state's top attorney.