He gave a strong performance in defense of his record to an occasionally hostile CPAC crowd.
However, he says Congress has "every right" to act to roll back Obama's immigration orders.
Former Pennsylvania senator used his CPAC speech to burnish his foreign policy credentials.
The confab's perennial favorite got a rock star's welcome amid cheers of "President Paul."
The reality TV host tells CPAC the likelihood he'll run for president is at 75 to 80 percent.
His comments hitting government surveillance drew loud cheers from the friendly CPAC crowd.
Vincent Gentile will represent Democrats in the May 5 special election.
The former Texas governor and likely 2016 hopeful blasts Obama as weak on terror threats.
Potential 2016 hopeful tells CPAC he was wrong in his past approach to comprehensive reform.
His comments come as House GOP prepares to vote on short-term DHS funding bill.