Is U.S. Sen. Chuck Grassley now 'vincible'? In new Iowa Poll, nearly two-thirds say it's time for someone new

Is U.S. Sen. Chuck Grassley now 'vincible'? In new Iowa Poll, nearly two-thirds say it's time for someone new

27% of likely Iowa voters say they would vote to reelect Grassley if the election were today, a new Des Moines Register/Mediacom Iowa Poll shows.