The Democrats conducted some early polling last summer as part of their 2018 House election strategy. To recapture the House they are focusing on a bunch of districts held by Republican House members that Hillary Clinton won in 2016.
Remarkably, they found that impeaching Trump had so little support even among Democrats in those districts -- and the attacks on Trump actually made his support stronger in 2017 in those districts than it was on Election Day in 2016.
That's why you never hear Democrat leadership talking about impeachment anymore. They leave that to moonbat mutants like Maxine Waters and Sheila Jackson-Lee who say this all the time. Their job is just to generate hostility against Trump among black voters so their turnout is high in 2018.
Last summer and now are light years apart.