President Donald Trump said the U.S. relationship with Britain is going to be “even better” after U.K. Trade Secretary Liam Fox’s visit to Washington to pave the way for a post-Brexit trade deal. Trump’s comments, made in a tweet late on Monday, came as Fox prepared to meet members of Congress to outline the findings of a report on the existing trade relationships between the U.K. and each of the U.S.’s 435 congressional districts. Trump said Fox’s meeting on Monday with U.S. Trade Representative Robert Lighthizer begins “a new chapter for stronger trade.” Fox said on Monday that the U.K. and the U.S. “have a strong foundation on which to build,” but economists and trade specialists have warned any deal will be difficult to deliver because U.S. negotiators have more experience and could bulldoze the U.K. on issues such as agricultural and financial regulation. A report by the upper chamber of the U.K. Parliament, the House of Lords, published Tuesday, said British farmers risk losing out to cheaper, imported food after leaving the European Union if ministers don’t retain strict standards for animal welfare. U.K. farms have some of the world’s highest welfare standards, but also higher production costs. There is already a split in May’s cabinet about allowing imports of chlorine-washed chicken from the U.S., according to the Daily Telegraph newspaper. Chicken ‘Obsession’ Questioned in Washington Monday about whether he would eat such chicken, Fox said the media was “obsessed” by a “detail of the very end stage of one sector of the potential agreement.” Back in London, May’s spokesman, James Slack, said the report was premature and that any trade deal must work for farmers, consumers and businesses. Removing commercial barriers with the U.S. could generate an additional 40 billion pounds ($50 billion) in trade with the U.K. by 2030, according to the U.K. government. Fox also acknowledged on Monday it will be a stretch for Britain to negotiate a new trading relationship with the EU by the time of their 2019 divorce, in another sign that the U.K. government will seek a post-Brexit transitional period. Businesses are urging the U.K. to focus on setting out its new relationship with the European Union before forging alliances elsewhere. Speaking in Brussels, Confederation of British Industry Director General Carolyn Fairbairn said a trade deal between the U.K. and the EU should be the priority rather than a transatlantic accord.