Over 4,000 international guests have visited Iowa through this program.
He has also visited Iowa, the first caucus state in presidential campaigns.
Following protocol, candidates will deny they are interested in a run at the presidency, while continuing to visit Iowa over the next couple of years.
They play at Penn State before visiting Iowa.
Kansas stayed unbeaten with a 20-7 win over visiting Iowa.
He visited Iowa in November 2009 and April 2010, making political speeches.
Purdue suffered its first loss of the season, falling 14-6 to visiting Iowa.
This year, Hawaii's football team had the bad fortune to visit both Iowa and Colorado State.
Media outlets reported that 10 potential presidential candidates had visited Iowa in October.
Thompson visited Iowa on August 17, 2007, but did not then officially launch his presidential campaign.