Iowa State Fair 2015: 7 Things to Watch as Presidential Hopefuls Head to the Hawkeye State

Presidential candidates descend on the Iowa State Fair. Here's what to watch.

— -- It’s that time of year, again.

While there’s no Iowa straw poll this year, the fair is a “contest” of sorts where candidates might have a breakthrough, or breakdown, moment while indulging in pork chop on a stick and fried butter.

Here’s a look at the top seven things to watch for at this year’s Iowa State Fair, which starts today and runs through Aug. 23: