Is there any reason not to impeach ? I don't buy that it would somehow help Trump with voters at large and I think you can both campaign on the issues and entangle him in proceedings.
they could impeach him, but they will never get 2/3 of the senate vote to remove him. Pelosi signaled that she is not interested in impeachment.
Removal is not necessary. It's a given that more damaging stuff and financial crimes suspicions will keep trickling down from the host of other investigations. Keep the spotlight on the fact he's a crook, have the House then the Senate keep asking inconvenient questions. Force Republicans in Senate to publicly vote for not removing him. Have the Presidential candidates work on issues and policies in the meantime.
The GOP would not hesitate a second to do so, on far more flimsier pretexts.
I think it's the right thing to do, on principle and out of interest.