1)Delay did something wrong and he knows it will come out...
OR
2)He doesn't have the intestinal fortitude to fight this thing all the way to it's conclusion.
Either one of those and I say, good riddance.
Maybe he cares about the party more than personal power.
What is wrong with all of you? The Republicans were going to dump him to try to save themselves. That's why he is resigning. He was FORCED OUT by the cowardly crew he serves with!