| − | 30-year incumbent [[Charles Grassley]] is one of the most distinguished and influential Republican Senators in Washington (he serves as ranking member of the Finance Committee) and as of now is secure to win a sixth term. Former state legislator Bob Krause is planning to challenge Grassley. | + | 30-year incumbent [[Charles Grassley]] is one of the most distinguished and influential Republican Senators in Washington (he serves as ranking member of the Finance Committee) and as of now is secure to win a sixth term. Former state legislator Bob Krause is planning to challenge Grassley. A September 2009 Rasmussen poll has Grassley leading Krause by 26-percentage points. <ref>http://www.rasmussenreports.com/public_content/politics/elections2/election_2010/election_2010_senate_elections/iowa/election_2010_iowa_senate_race</ref> |