Louisiana Lt. Gov. Jay Dardenne (R) won't challenge Sen. Mary Landrieu (D) in 2014, citing a desire to remain in his current position.

"I'm not going to run for the U.S. Senate," Dardenne told LaPolitics Weekly. "This fell in my lap. I didn't go out looking for it. So I'm not going to prolong the question any longer. I love what I'm doing and I will continue to do that for the balance of my term."

Dardenne had been seen as a potential challenger to Landrieu, who is one of 2014's most vulnerable Democratic incumbents. Other possible GOP challengers to keep an eye on include Reps. Bill Cassidy and John Fleming, and former congressman Jeff Landry. Last week, Rep. Charles Boustany (R), a close ally of House Speaker John Boehner (R-Ohio), said he would not challenge Landrieu.