This may prove instructive regarding Iowa's gambling situation...
"A handful of NFL players, including Indianapolis Colts cornerback and kick returner Isaiah Rodgers, are expected to receive season-long suspensions this week for violating the NFL's policy on gambling, sources told ESPN's Adam Schefter on Wednesday."
https://www.espn.com/nfl/story/_/id/37928546/sources-nfl-expected-suspend-isaiah-rodgers-others-week