evidence: "Donald Trump himself wrote a book where he was talking about the need to increase the age of eligibility for Social Security to 70 and said people shouldn’t be worried about retiring, just keep working," DeSantis said. "That's what his words were." [...] When DeSantis was a U.S. representative, he voted for a 2013 budget resolution that proposed raising the Social Security and Medicare retirement age to 70. DeSantis had said he wanted to make the programs "financially sustainable" for younger generations. More than a decade later, and ahead of a possible GOP presidential primary, DeSantis walked back that stance, telling Fox News in early March that he would not "mess with" entitlement programs like Social Security and Medicare. [...] Though in his book, Trump did propose raising the age for full Social Security benefits to 70, this has not been his position for years. DeSantis also left out details about how Trump’s old proposal would work. We rate this statement Mostly True.