Senate GOP in bind on impeachment

Senate Republicans, with 22 seats up for reelection and their majority up for grabs in 2020, are in a bind over how to defend President Trump from the House impeachment push.

They realize their political fortunes and policy goals are tied to the president, but they also know their best shot at keeping control of the Senate hinges on senators preserving their independent brands.

That means they have to be careful in defending conduct they see as improper; several Senate Republicans say it would be wrong to hold up military...