Rubio will speak at CPAC 2013

CPAC has long been a stopping point for GOP presidential aspirants. Rubio, who has spoken at previous CPACs in previous years, is seen as a likely contender for the nomination.

"My friend Marco RubioMarco RubioRubio: GOP Congress could go in different direction than Trump Poll: Clinton holds 4-point lead in Florida Republicans, it's time to stop asking 'What would Reagan do?' MORE has quickly become one of our nation's most prominent conservative leaders," American Conservative Union Chairman Al Cardenas said in the release announcing the news. "Sen. Rubio's participation will serve as motivation to CPAC attendees and conservatives across the country to take action and bring our country back on track."

Rep. Paul RyanPaul RyanPoll: GOP has edge for open Wis. House seat In six new sanctuary states, Americans put at risk What the 'Bernie Sanders wing of the GOP' can teach Congress MORE (R-Wis.) is already scheduled to speak at the event, as is former Sen. Rick Santorum (R-Pa.).

The three-day event, in its 40th year, will be held in mid-March.