Ms. Peltola, the Democratic Senate candidate in Alaska, has complicated politics: She is pro-gun, pro-oil and pro-gas — but also pro-environment and especially pro-fish.

© Ash Adams for The New York Times

As their midterm picture darkens, and gas and diesel prices soar, some Republicans who backed the war for months are now changing their tune.

© Kenny Holston/The New York Times, KC McGinnis for The New York Times