Mark Cuban, a Hillary Clinton supporter and one of Donald Trump’s most vocal critics, met with the president-elect’s top adviser Steve Bannon over coffee in Manhattan on Tuesday.

It wasn’t clear what they discussed at the King Cole Bar at the St. Regis Hotel, according to TMZ, which published a photo of the odd couple.

Cuban, the billionaire owner of the Dallas Mavericks basketball team, was one of the loudest anti-Trump voices during the presidential campaign. The Mavs, Milwaukee Bucks and Memphis Grizzlies have all said they won’t stay in Trump hotels while on the NBA road.

Bannon, who was recently named White House chief strategist, came from Breitbart News, a favorite site of the alt-right.

As harsh as Cuban was on Trump during the campaign, the NBA owner gave Bannon a backhanded compliment last month, saying he’s “a lot smarter” than Trump and only using him to benefit the site.