Trump impeachment? Not until McConnell has confirmed as many pro-corporate judges as possible.
That's the prize.
Trump set a record for appeals court confirmations during the first year of a presidency in January 2017 (https://www.dailysignal.com/2018/10/12/mitch-mcconnell-makes-senate-confirm-15-more-judges-before-going-home/
In his first 200 days in office, Trump appointed more judges than Presidents Obama, Bush and Clinton (https://www.dailysignal.com/2017/08/10/trump-appoints-more-judges-in-200-days-than-obama-bush-clinton/)
FULL LIST AS OF 1-17-18 (wikipedia): As of January 17, 2019, the United States Senate has confirmed 85 Article III judges nominated by President Trump, including 2 Associate Justices of the Supreme Court of the United States, 30 judges for the United States Courts of Appeals, 53 judges for the United States District Courts, and 0 judges for the United States Court of International Trade (more at the link).
You might argue there's nothing to keep Pence from doing the same, and that might very well be true. But as the saying goes, "a bird in the hand ..."