text: UK prime minister doesn't expect to agree to a trade deal during his visit to the US this week
  Prime Minister Boris Johnson walks to a television interview in New York while attending the UN General Assembly during his visit to the US. PA
  UK Prime Minister Boris Johnson has blamed his lack of a post-Brexit trade deal with the US on President Joe Biden having "a lot of fish to fry" as he heads to the White House with the hope of restarting the stalled negotiations.
  The prime minister suggested the free trade agreement (FTA) touted by Leave supporters as a major prize of leaving the EU was not high on the president's list of priorities.
  Mr Johnson was expected to push to resume talks on Tuesday when he makes his first visit to the White House since Mr Biden succeeded Donald Trump.
  "On the FTA, the reality is that Joe has a lot of fish to fry," Mr Johnson told reporters travelling with him to the US on RAF Voyager.
  "He's got a huge infrastructure package; he's got a Build Back Better package. We want to do it, but what we want is a good FTA, a great FTA."
  Mr Johnson this week insisted that relations between Washington and London now "are about as good as they have been at any time in decades".
  But Brexit itself presents a quandary to the prime minister's relationship with Mr Biden, who has told there will be no trade deal if peace in Northern Ireland is jeopardised by the EU departure.
  Transatlantic relations have been strained by Mr Biden's withdrawal of troops from Afghanistan before allies, including Britain, managed to fly out former staff and other vulnerable Afghans.
  A day earlier, Mr Johnson played down any expectations that he could "crack" the issue during his visit to the White House.
  "I don't think we're necessarily going to crack it this week. I've got to warn you, I don't think this is going to be necessarily fixed this week," he said on the RAF Voyager.
  Mr Johnson's last attendance at the UN summit in New York was cut short when, in 2019, the Supreme Court ruled his decision to suspend Parliament during the Brexit wrangling was unlawful.
  A major diplomatic row has also broken out over a new military pact between the UK, US and Australia which scuppered a multibillion-dollar contract for France to provide submarines to Australia.