Representative Marie Gluesenkamp Perez, a moderate Democrat, is going head-to-head with candidates to her right and her left in a battleground district.

The malaria-carrying mosquito is resistant to all insecticides. Scientists are scrambling to find ways to blunt the risk.

Todd Blanche’s nomination now advances to the Senate floor, where he is expected to be confirmed, even though several Republicans have not yet committed to supporting him.

Republicans see the marquee race to lead the state as perhaps their best chance this year to win a governorship held by Democrats.

Former Representative Cori Bush, a member of the progressive “squad,” is trying to defeat Representative Wesley Bell, a moderate who ousted her two years ago.

Redistricting turmoil started, then ended, the campaigns of several Democratic hopefuls and pushed others into more competitive races than they anticipated.

As President Trump heads to the West Coast to talk to Americans about the economy, the war in Iran is driving up costs and polls show the already unpopular conflict is losing support.

Players vs. teams. Doctors vs. insurers. How the same method for resolving pay disputes has led to wildly different results.