Impeachment may help Trump in this way. I believe it will force Trump
and his team to keep their eye on the 2020 election ball. Without impeachment Trump’s positive economy and foreign policy accomplishments may have caused them to assume 2020 was a lock. However, they now have the unknown affects of impeachment to factor into Trump’s re-election. For that reason, IMO, they will leave no stone unturned in pursuing Trump’s re-election. If nothing else impeachment will make great locker room bulletin board material for the team. Of course I could be completely wrong. Trump is not the kind of guy to take his foot off the gas until he has accomplished what he set out to do and then some, with or without impeachment.