Republican Sen. Rand Paul of Kentucky endorsed Mitt Romney for president Thursday, even if he admits he would prefer his father, Rep. Ron Paul.
"My first choice had always been my father. I campaigned for him back when I was 11 years old. He's still my first pick," the Republican told Fox News.
"But now that the nominating process is over, tonight I'm happy to announce that I'm going to be supporting Gov. Mitt Romney in the fall."
Paul's father suspended his formidable active campaign operation in May, but is still pursuing delegates so he can have an influence at the GOP convention.
Paul noted in the Fox interview that Mitt Romney's father, Michigan Gov. George Romney, also fell short in his own presidential bid in 1968.
In response, Romney said in a statement on his campaign website that he was "honored" by the endorsement of the first-term Kentucky Senator.
He called Rand Paul, who campaigned actively for Ron, "a leading voice to scale back the size and reach of government and promote liberty."
The younger Paul has been mentioned as a possible Vice Presidential pick and/or a GOP candidate for President himself in 2016 or 2020.