Rep. Paul Ryan (R-Wis.) will keynote this year's Conservative Political Action Conference, a testing ground for Republican presidential candidates. 

"We are pleased to announce that Congressman Paul Ryan will be a featured speaker at CPAC 2013," American Conservative Union Chairman Al Cardenas said in a statement. "From the day he was elected, Chairman Ryan has been a strong voice in Congress for pro-growth, free-market economic policies and has always been a CPAC favorite."

The three-day, mid-March event will bring conservative activists from around the country to Washington and offer Ryan a high-profile opportunity to reposition himself in the wake of the 2012 election. The annual presidential straw poll is seen as an indication of a candidate's momentum. (Ryan said this week that he has "decided not to decide" about a 2014 bid.) Mitt Romney won in 2012, a boost for a candidate that had struggled with his party's right flank.

That year, former Alaska governor Sarah Palin delivered the keynote speech.