Donald Trump has said very bad, even vile, things about Kamala Harris, whom he never met in person until their epic debate on Tuesday night, when she forced him to shake her hand before imploding him on stage.

But their new relationship apparently blossomed overnight. And on Wednesday they shook hands for the second time, about 12 hours after their first handshake, at a ceremony in Manhattan commemorating the terrorist attacks of September 11, 2001. And the pleasantries didn’t end there.

“Good job,” Trump told Harris as they shook hands as they both arrived to take front row seats at the memorial service, according to a source at the event.

Trump repeated a compliment — either “good job” or something else, it was hard to tell — as their handshake continued and the former president briefly placed his left hand between his palms to clasp her right hand. He tapped her hand twice with his left hand before releasing it.

Former New York mayor and one-time presidential hopeful Michael Bloomberg appeared to be playing matchmaker. Harris was chatting with New York Senator Chuck Schumer, the Senate majority leader, when Bloomberg tapped her on the arm. She turned around and there stood Trump, wearing his trademark red tie and boxy suit.

As the two shook hands for the second time, Harris said something unintelligible to Trump and nodded during their roughly five-second exchange before they got back in line for the somber memorial service.

President Joe Biden stood quietly, watching developments. Bloomberg stood next to Trump, who stood next to his vice presidential candidate, JD Vance.

The 9/11 commemoration stood in stark contrast to the previous evening, when Trump spread lies about Harris’ past, claiming again that she wasn’t really black and that it was her fault that immigrants in a small Ohio town were doing unspeakable things to people’s pets – all of which were invented by right-wing conspiracy theorists.

Here was Trump, ranting venomously and uniquely viciously about his political enemies from the hidden comfort of social media, and being polite and dignified with Harris. It was unusual but appropriate that both candidates put aside their political differences after their heated and angry debate on Tuesday night, when Trump used far-right conspiracy theories to propel him to what pundits from both parties called the former president’s colossal failure.

Trump, 78, was also booed and criticized during the Ground Zero attacks for winking and smiling at photographers and looking skyward while other political leaders bowed their heads in solemn remembrance of the 2,977 innocent lives lost on 9/11, 2,603 ​​of whom died at the World Trade Center.