The Iowa senator hit a deer on Thursday night and tweeted that he pulled his fender off and kept driving.

"Assume deer dead," he tweeted.

Deer collisions are not unusual in Iowa, which has ranked the second or third most likely state for drivers to hit a deer in studies performed by State Farm Mutual Automobile Insurance Co. over the last few years.

In Grassley's case, the tweet resulted in at least one dead-deer parody account on Twitter.