Stephen Flynn has urged Sir Keir Starmer to drop his opposition to re-joining the EU amid the threat of US tariffs after Donald Trump’s election victory.
The SNP Westminster leader said the Prime Minister’s red lines on the economic block were always “ridiculous”.
But he said the economic threat posed by the Trump administration in America now made them “redundant”.
The President-elect – who decisively won the US election earlier this week – pledged during his campaign to bring in tariffs on exports entering the US.
Experts have warned the policy could result in a £20 billion hit to the UK’s economy.