And Trump will own it2020 will be a bad year for RepublicansIt takes about 20 Republicans to convict between now and November, 2020.The Libs don't have the votes to depose President Trump.
And they won't have them ever.
It takes a 2/3 Majority in the Senate.
2020 United States Senate elections - Wikipedia
"As of November 2018 (and including the 2020 special election in Arizona), Republicans are expected to defend 22 seats in 2020, while the Democratic Party is expected to defend only 12 seats."
How many of those 22 Republicans defending their seats in 2020 are willing to sacrifice their career for Trump?
President Trump isn't nearly as unpopular among voters as you are assuming. In fact, among Republicans he's quite popular and a Republican voting to throw out the President would face certain defeat in a primary.