Candidates vying to succeed California’s term-limited Gov. Gavin Newsom squared off Tuesday in a CNN-hosted debate, with former Health and Human Services Secretary Xavier Becerra drawing the most pointed jabs from rivals on both sides of the aisle.

Billionaire climate activist and former presidential candidate Tom Steyer has won a key union endorsement that helps solidify his position as the party’s leading contender for California governor. This follows the dramatic collapse of former Rep. Eric Swalwell’s campaign and his resignation from Congress Tuesday amid additional allegations of sexual assault.