Ken Paxton, a Republican, has not debated in more than a decade. A showdown with James Talarico, a Democrat, could be a key moment in the hard-fought race.

The Texas attorney general and his trusts now hold at least 15 properties worth about $9 million.

© Christopher Lee for The New York Times

The swift exit of Graham Platner from the Maine Senate race followed Eric Swalwell’s similar exit from the California governor’s race, but Republicans have taken a different tack.

© Sophie Park for The New York Times