Democrats worry over potential of retirements in Senate

Senate Democrats’ hopes of keeping their majority after the next election is complicated by a potential wave of retirements in key battleground and Republican-leaning states.

Sen. Debbie Stabenow (Mich.), a member of the Democratic leadership, announced on Thursday that she won’t run again, and all eyes are on Sens. Joe Manchin (D-W.Va.) and Jon Tester (D-Mont.), who haven’t announced their plans.

Their two seats in reliably Republican presidential states would be particularly difficult to hold on to for Democrats.