First lady Jill Biden and President-elect Trump surprised observers in December after appearing chummy at the reopening of the Notre Dame Cathedral in Paris — and now the former first lady has revealed what the pair talked about in that viral moment.

Nancy Pelosi was a crucial, behind-the-scenes voice last summer urging Joe Biden to drop out of the race against Donald Trump.

The president-elect later seized on the exchange with a stunt that was ripped as "so f**king tacky" and "gross."

First lady Jill Biden extended a gesture of kindness to incoming first lady Melania Trump after she did not accept her traditional invitation for tea at the White House in November. As a substitute, Jill Biden passed a note to President-elect Donald Trump for his wife.

First Lady Dr. Jill Biden broke her silence on a viral interaction with President-elect Donald Trump at the reopening of the Notre Dame Cathedral in Paris last month in an interview with the Washington Post 's Kara Voght published on Wednesday (January 15).