I remember back when Democrats were supposedly making a mistake by impeaching Trump.
That was a mistake. His approval increased several points right after. Had it not been for George Floyd and COVID he'd be sitting at 50% approval.
To be fair, his approval rating had been generally on an upward trend since late 2017 until George Floyd and COVID. And stretching even before that, his support has/had been on a steady upward trend since he announced his campaign. And he was impeached on December 18, 2019. Looking at the RCP chart, there doesn't seem to be any clear break from trend right after that.