One of the Republicans who's running for the U.S. Senate calls Democrat Bruce Braley a "vulnerable" opponent:
David Young, the former chief of staff of Senator Chuck Grassley, spoke to the Des Moines Conservative Breakfast Club Tuesday:
Young spoke from a script and did not take questions from the crowd of Republicans.
He calls Senator Grassley his "friend and mentor" -- and Grassley will appear at a couple of Young for Senate fundraisers, but Young says that's not to be viewed as a Grassley endorsement of Young's candidacy:
The Republican Primary could be crowded. Sam Clovis and Matt Whitaker are also running for the senate nomination. A few others are also pondeing jumping into the race.
Radio Iowa contributed story