In one swing district, impeachment hasn’t swayed voters – yet

Will voters punish moderate Democrats in swing districts for an impeachment vote? Conventional political wisdom says yes. But our reporter found that in one former Republican stronghold that may not be the case.

With Bing Crosby crooning and sleigh bells jingling over a sound system, Becky Haslett attended last week’s holiday open house for Rep. Gil Cisneros with a broad smile. He is one of seven Democrats who flipped House seats from red to blue in California last year.

When Ms. Haslett got her face-to-face opportunity with her congressman, she...