And in documents submitted to lawmakers by Cohen's attorneys on Thursday, Cohen said that Trump told him to lie to Congress about when negotiations about a Trump Tower project in Moscow had ended.
If there are indeed direct contact by potus directing cohen to lie to congress then along with everything else potus has against him and depending what revelations come from the tax returns it looks like they now have enough info to get a vote passed on impeachment in both houses.
Failing to vote by the senate would put the senate in too much jeopardy in the next elections. My point is that there is a limit to the amount of wrong doing the senate can ignore and still get reelected. One thing politicians love more than trump is their jobs.