Photo shows Hillary Clinton, George W. Bush together at Reagan's funeral
© Twitter

A photo has been posted on Twitter of Democratic presidential candidate Hillary ClintonHillary Diane Rodham ClintonBiden slams Trump over golf gif hitting Clinton Overnight Cybersecurity: Equifax hit by earlier hack | What to know about Kaspersky controversy | Officials review EU-US privacy pact Overnight Tech: Equifax hit by earlier undisclosed hack | Facebook takes heat over Russian ads | Alt-right Twitter rival may lose domain MORE and former President George W. Bush embracing at Nancy Reagan's funeral.

The candid shot was tweeted out by CNN's political director, who wrote, "This may be the best photo from Mrs. Reagan's funeral."

Bush and Clinton have a long political history. Clinton's husband Bill defeated Bush's father to win election to the White House in 1992. Bush then defeated Bill ClintonBill ClintonGOP rep: North Korea wants Iran-type nuclear deal Lawmakers, pick up the ball on health care and reform Medicaid The art of the small deal MORE's vice president, Al GoreAl GoreStop the loose talk about hurricanes and global warming Parties struggle with shifting coalitions OPINION | Midterms may provide Dems control — and chance to impeach MORE, to win his election to the White House eight years later.

The photo received a variety of responses on Twitter since being posted.