Kasich, left, and Grassley address a rally at the National Czech & Slovak Museum and Library in Cedar Rapids. (Al Drago/CQ Roll Call)
WATERLOO, Iowa — Republican candidates learn a lot on the trail when they're competing in Iowa's first-in-the-nation presidential caucuses. Along with the sanctity of ethanol and the primacy of pork products, they eventually grasp this is Sen. Charles E. Grassley's state. When you run for president here, at some point, Iowa's senior senator will appear alongside you, and everyone knows who he is.
"I didn't know Grassley was going to show up," said Bill Davidson, a bartender at The Supervisors Club, where the senator was introducing New Jersey Gov. Chris Christie. Davidson sounded impressed, as if the event, being repeated over and over throughout the state in the run-up to Monday's caucuses, had been elevated.