Former Alaksa Gov. Sarah Palin considers herself a "western conservative in the spirit of Ronald Reagan."
Newt Gingrich, the former House speaker, compares his Pennsylvania roots to Reagan's in Tampico, Ill. And, former Minnesota Gov. Tim Pawlenty, among others, credits Reagan as an inspiration to "fight for conservative causes."
But ask the 40th president's three surviving children -- Michael and Ron Reagan and Patti Davis -- whether any of their father's potential Republican successors could claim the Reagan mantle, and they say no way.
Is Sarah Palin the next Ronald Reagan?
"You've got to be kidding me," Patti Davis said in an interview with ABC News' "This Week."
"Sarah Palin has nothing in common with my father," said Ron Reagan, Davis' younger brother and a political liberal. "Sarah Palin is a soap opera."
Where does Gingrich stand?
"In some dank little basement somewhere or some fantasy world in his own head," he added.
"You must be kidding me," Davis said of the comparison of Gingrich to her father. "No!"
Michael Reagan, a Republican strategist, said simply that no one matches up.
"I'm not going to down that road because I don't see anyone in Ronald Reagan's image," he said. "He was one of a kind."
While the Reagan children have found the comparisons -- and the extent to which politicians will go to make them -- highly amusing, they say they are intrinsically contrary to Reagan's personal philosophy.
"I remember when I was a kid, my father saw an ad somewhere for 'real simulated diamonds' and he was chuckling and laughing about this. He thought it was so funny that they would put together those two words, real and simulated. And I remember him saying: 'You think people are stupid? Do they think people don't know what the word simulated means?'" Davis said. "I think he would have had the same reaction to people trying to imitate him."
Reagan's three children say the infatuation with their father's legacy is perhaps most reflective of the Republican Party's search for a unifying figure, a leader to chart a path forward.
"Everybody's trying to out-Reagan themselves," said Michael Reagan, an adopted son of the late president. "They're quoting my father, which is wonderful. But they've got to find their own voice and who they are. And I think a mistake that we make as conservatives is by looking for the next Ronald Reagan.
"We may very well walk right past the next great leader of our movement," he said.
Michael Reagan said he believes that next leader may emerge from the Tea Party, which he said is the best current example of his father's vision in action.
"My dad would be supportive of grassroots America rising up and saying we're mad as hell and we're not going to take it anymore," he said.
Ron Reagan and Patti Davis sharply disagree, calling the Tea Party's message "extreme" and contrary to their father's principles.