Feinstein and Obama served in the Senate together from 2005 until 2008. The California Democrat called Obama “a singular President with a remarkable legacy that will truly stand the test of time” in a statement. She said she was thankful for the support.
The endorsement comes as Feinstein has at times struggled to rally local Democrats behind her candidacy for a fifth full term. California Democrats denied Feinstein the party’s endorsement at a convention in February, giving a majority of votes to de León.
Under California’s nonpartisan primary system, all of the candidates will face off in a June 5 primary. The top two finishers will advance to the general election, regardless of party affiliation.