Cedar Rapids mayor Ron Corbett is giving more details on the timing of a potential run for governor. He says some time in the next 45 days he'll make the decision regarding the state's highest office. Corbett isn't running for reelection this year in Cedar Rapids and is on a book tour now. He says that book tour will help him decide if he has enough support to challenge current Lieutenant Governor and Governor-in-waiting Kim Reynolds in the GOP primary.