President Trump invited Boris Johnson to the White House for a visit next month following the British prime minister’s election win earlier this month and Britain’s expected exit from the European Union, according to a report on Sunday.

“Some potential dates have been floated in mid-January but nothing has yet been formally agreed. But it is clear that both sides want to make it happen sometime in early 2020,” a White House source told the Sunday Times of London.

Johnson’s Conservative Party won a majority of seats in the British elections earlier this month, paving the way for the United Kingdom’s withdrawal from the EU on Jan. 31.

Following the vote, Johnson said his government has a “powerful new mandate to get Brexit done and not just to get Brexit done but to unite this country and to take it forward.”

Trump lauded Johnson for his election victory, saying it opened up the possibility of a trade deal between the two countries.

“Congratulations to Boris Johnson on his great WIN! Britain and the United States will now be free to strike a massive new Trade Deal after BREXIT,” Trump wrote on Dec. 13. “This deal has the potential to be far bigger and more lucrative than any deal that could be made with the E.U. Celebrate Boris!”

But Johnson has been reluctant to travel to the United States until Brexit is completed, British media reported.

And some inside 10 Downing Street worry about Johnson appearing at the White House while the Senate is holding a trial to remove Trump from office after the House impeachment vote last week.