If there is a blue wave this November won't it make sense for Trump to resign and be pardoned that to be impeached?

Trump thinks he can pardon himself and be done with it. That would set off a constitutional crisis. Even if the Democrats take the House and impeach him, the Senate won't have the super majority needed to remove him, and the Republicans love Trump more than country, so he'll remain in office.

What he's not counting on is that most of his federal crimes also have state implications, and he cannot pardon himself or be pardoned for crimes in individual states.