Six candidates joined the bidding yesterday as the Republican Party of Iowa auctioned off space for the Ames straw poll event. Representative Ron Paul ponied up $31,000 for the best spot to pitch a tent outside the August 13 festivities. Four years ago, front-runner Mitt Romney used that spot, but the well-financed Romney is ditching this year’s straw poll.

The other candidates to pay at least $15,000 for guaranteed spots at the venue and on the straw poll ballot were Representative Michele Bachmann, former Godfather’s Pizza CEO Herman Cain, former U.S. Senator Rick Santorum, former Minnesota Governor Tim Pawlenty, and (coming way out of right field) Representative Thad McCotter of Michigan. Former House Speaker Newt Gingrich was conspicuously absent from the bidding. Candidates who didn’t bid yesterday may secure a spot on the straw poll ballot later. Among the possibilities: Texas Governor Rick Perry.

Follow me after the jump for more on the Republican campaign trail in Iowa, including new endorsements and Pawlenty’s first television commercial.

Political junkies may not have Newt Gingrich to kick around much longer. His whole presidential campaign staff quit yesterday, frustrated by the candidate’s lack of a work ethic.

Iowa Republicans will have fewer chances to kick Mitt Romney around this summer. The former Massachusetts governor won’t compete in the Iowa GOP’s straw poll this August, his campaign confirmed yesterday.

After the jump I have more links on those stories and other Republican presidential candidate news. I’ve got nothing on the Iowa GOP Lincoln dinner fundraiser that was supposed to be held tonight, though, because the state party canceled that event after Donald Trump backed out.