THE majority of Scots believe that Boris Johnson should resign in the wake of the Supreme Court ruling that he acted unlawfully by suspending Parliament, according to a new poll.

Some 55% say that the Prime Minister should stand down, with just 26% saying he should not and 19% saying they don't know, according to the snap poll by YouGov.

Across the UK, 43% wanted his resignation against 39% saying he should not and 18% saying they don't know.

READ MORE: Historic court defeat for Boris Johnson

The SNP Westminster leader Ian Blackford has repeated calls for the Prime Minister to step down in the wake of the poll, warning that Johnson’s “short premiership has been dogged with defeats, defections and disaster,” and his position left untenable after the court ruling.

An overwhelming majority of people in Scotland (68%) also agreed that the Supreme Court was correct in its ruling against Boris Johnson.

Mr Blackford said: “This YouGov poll is yet another nail in the coffin of Boris Johnson’s premiership.

The Herald: SNP Westminster leader Ian Blackford speaks during Prime Minister's Questions in the House of Commons, London. PRESS ASSOCIATION Photo. Picture date: Wednesday January 10, 2018. Photo credit should read: PA Wire.

“His decision to shut down Parliament in an attempt to force through an extreme Tory Brexit did not stand up in court and it’s clear it will not wash with people across Scotland and the UK - with an overwhelming majority agreeing he should resign.

“Boris Johnson’s short premiership has been dogged with Parliamentary defeats, defections and disaster. He has no authority or credibility - if he has a shred of respect left for the office he holds then he should resign immediately.

READ MORE: Reaction following historic Supreme Court ruling as suspension of parliament deemed 'unlawful' 

“People in Scotland are looking on in horror at the chaos consuming Westminster. Scotland deserves the choice of a better future than the one being imposed upon it.

“It's clearer than ever that the only way to properly protect Scotland's interests is to become an independent country.”

Across the UK, 49% agreed with the Supreme Court ruling, with 30% disagreeing and 21% saying the don't know.