Rep. Ed Royce, chairman of the House Foreign Affairs Committe, said on Monday that he will retire from Congress at the end of this, his 13th term. The California Republican is the latest in a series of House Republicans to announce he'll not seek re-election.

Why it matters: Hillary Clinton won Royce's district by 9 points in 2016, and Democrats will be eyeing a pickup in the midterms. They need to flip 24 seats for a House majority.