George H.W. Bush is reportedly voting for Hillary Clinton

A prominent member of the Kennedy family says former Republican President George H.W. Bush told her he planned to vote for Democrat Hillary Clinton for president this fall.

Kathleen Kennedy Townsend, the former Maryland lieutenant governor, posted a picture of herself with Bush on Facebook on Monday and added, "The President told me he's voting for Hillary!!" Townsend later confirmed the conversation she had while meeting Bush in Maine to Politico, which shared an image of the Facebook post.

Bush's spokesman, Jim McGrath, said in a statement that the 92-year-old former president's vote was private and that Bush wasn't commenting on the race. McGrath later said on Twitter that he was "still checking" whether anyone was there to verify Townsend's conversation.

Bush hasn't offered support for GOP nominee Donald Trump, who defeated his son Jeb Bush this year in a testy Republican primary.

His son, the former Florida governor, was one of Trump's most frequent targets during the Republican primary cycle, with the Manhattan billionaire labeling him "low-energy." Jeb, along with Ohio Gov. John Kasich and Sen. Ted Cruz of Texas have not thrown their support behind Trump following the contentious primary. Another one of the former president's sons, former President George W. Bush, has also refused to back Trump. None of the three attended the Republican National Convention in Cleveland this summer.

In addition to serving as 41st president, George H.W. served as a Texas congressman, chairman of the Republican National Committee during former President Richard Nixon's second term, director of the Central Intelligence Agency under former President Gerald Ford, and vice president in former President Ronald Reagan's administration.

He is the highest-ranking Republican to reportedly admit to supporting Clinton. It's an unprecedented move for an ex-president to support the nominee of the opposing party.