"By delaying invoking Article 50, [Theresa] May has left the path open to endless obstruction," George Galloway talk talkRADIO listeners on Friday night.
Earlier this week a panel of judges ruled Theresa May cannot trigger Article 50, which will start the two-year countdown for the UK to leave the European Union, without the consent of Parliament.
He has urged the Government to call a snap election.
"The only solution to this crisis now is a general election. Parliament has a right to be involved in Brexit, but not this one," he said.
"If Mrs May had any sense she would have immediately invoked Article 50 using the Royal Prerogative."
He also reminded listeners of his views from the morning the result came out in June.
"I said on the morning after the EU referendum that Article 50 must be triggered immediately.
"It was clear in the introduction to the EU Referendum bill that its verdict must be followed."
Mr Galloway also said that Parliament is not sovereign, but the people are.
"Any attempt by political class to overturn decision of British people threatens social peace itself."
In his opening monologue he also commented on Sir John Chilcot appearing in front of MPs as well as the state of the US election campaign.
Listen to his full monologue above...