Asked if it mattered if Mr Johnson was at the back of the queue, his spokesman replied: “No, that’s not something that we are concerned about.”
“I’m not in position to talk about timetables for any meetings,” he said – amid a suspension that Mr Biden will prioritise meeting Angela Merkel and Emmanuel Macron first.
The Biden team is known to harbour resentment that Mr Johnson, in 2016, alleged Mr Obama’s “part-Kenyan” heritage had made him anti-British in the row over a post-Brexit trade deal.
Asked if the prime minister would apologise, his spokesman insisted the new president’s aides had said he was looking forward, not back, adding: “And that’s what we will be doing as well.”
The comments came as No 10 confirmed the UK has ordered 40 million doses of the Pfizer Covid-19 vaccine – after the firm said early data showed it to be 90 per cent effective – with 10 million available by the end of 2020.
However, the spokesman urged caution about the apparent good news, saying: “The results are promising and, while we’re optimistic of a breakthrough, we must remember that there are no guarantees.”
Mr Johnson is also on a collision course with the president-elect over the international law-busting Internal Market Bill, which threatens to undermine the Good Friday Agreement.
But No 10 insisted there would be no U-turn, despite the risk that it will doom the UK to a no-deal Brexit – and despite a looming heavy defeat in the House of Lords later on Monday.
“MPs backed the Internal Market Bill by 340 votes to 263 in September and our position remains that the clauses are a vital safety net,” the spokesman insisted.
“We have been clear that, as a responsible government, we cannot allow the peace process or the UK’s internal markets to inadvertently be compromised by unintended consequences of the [Northern Ireland] protocol.”
And, as the Brexit talks resumed, No 10 again highlighted the “significant gaps” that remain between the UK and EU positions in the negotiations.
“The PM would like us to do a deal, and that’s what we have been working to achieve, and we will carry on working to find solutions that fully respect the UK’s sovereignty,” the spokesman said.
“But, equally, people should get ready for January 1 with arrangements which are more like Australia’s [a no-deal Brexit].”