Former President Barack Obama endorsed Sen. Dianne Feinstein, D-Calif., on Friday in her re-election bid.

“She’s always been an indispensable leader for California, and we became dear friends and partners in the fight to guarantee affordable health care and economic opportunity for everybody; to protect our planet from climate change, and our kids from gun violence,” Obama said in a statement. “I ask Californians to join me in supporting Dianne Feinstein’s re-election and returning one of America’s most effective champions for progress to the Senate.”