A lawsuit over Iowa is not going to help him.
It will distract him, that will be all he talks about, and he will lose future elections as a result IMO.
He needs to focus on here is why I am a better choice than all these other guys, here is why I am what America and Americans want at this crucial time in history.
If he is doing something other than that, he’s going to lose.
People respond to positive campaigns. He appears to be moving in the opposite direction.
(It won't stop with Iowa...TANTRUMp, having received a golden ticket to go on the Republican Tour, is the Veruca Salt of the movie script)