Former Iowa Governor Tom Vilsack says he has no plans to leave his post to run for the U.S. Senate. Republican Senator Chuck Grassley plans to seek reelection in 2010, but Vilsack — a Democrat who is President Obama’s Secretary of Agriculture — says he does not intend to leave his post anytime soon.

“I’ve got a great job,” Vilsack said during an appearance at the State Fair last week, before repeating: “I’ve got a great job.” Vilsack’s wife is keenly interested in politics, but according to her husband she hasn’t been talking about running for the U.S. Senate either. “I can’t speak for Christie, but she hasn’t told me anything about that,” Vilsack said.

Vilsack served two terms as Iowa’s governor, then announced in late 2006 that he was a candidate for the Democratic Party’s presidential nomination. He dropped out of the race in early 2007 and both Tom and Christie Vilsack endorsed Hillary Clinton. In June, Tom Vilsack formally endorsed Barack Obama and he frequently was called upon by the Obama campaign to serve as a spokesman.

However, both Vilsacks went to the Democratic National Convention as Clinton delegates and supported Clinton until she released her delegates to vote for Obama. Two Democrats have announced their intentions to try to challenge Grassley in 2010. Tom Fiegen of Clarence and Bob Krause of Fairfield are both former state legislators.