It’s time for a new discussion thread on the campaign for Iowa’s open U.S. Senate seat. I’ve pulled together lots of news on the declared and potential Republican candidates after the jump.

Some candidates who have expressed interest may back off before the filing deadline next March, but if most of them follow through, it’s plausible that no Republican will receive 35 percent of the vote in the June 2014 primary. That would allow statewide GOP convention delegates to select a nominee to face Democrat Bruce Braley in the general election.