As I expected, he's a friggin attention whore. I bet he thought that the big time people or the members should kiss his arse and found that they didn't give a damn who he was. Polk County is Des Moine. Democrat. Looked it up. Hasn't gone Republican in an election since 1980. They probably had to beg to have someone take the gig as chair.
My best friend is a County Chair (not a co-chair either) of one of the most important counties in the state and one of the most Republican counties. I sent him this story. He called the guy who resigned a "worthless piece of crap", and said if he ever resigned, he'd do so quietly and move on. If the papers asked, he's say is was a time issue.
It’s a shame he got the position. I just went through at least 6 pages of google and this has made big news. Funny, when the black State of LA congressman switched from D to R that was no big thing.