This assertion concerns impeaching Trump for obstruction of justice, committed while he was in office.
We win the election w/ base turnout, including young voters who can tend to be disaffected and will be fired up by impeachment.
Neither is backed up by that much direct empirical evidence, imo, but both make sense in terms of what we know about American politics.
I think both probably describe events that would happen.
Respect each other’s arguments!