Labour have taken an eight points lead in the latest opinion poll published by YouGov.
It is the first survey the polling company has taken since last month’s General Election.
The poll puts Labour at 46 per cent and the Conservatives 38 per cent.
The Lib Dems are on six per cent and UKIP 4 per cent.
The findings could increase the pressure on already beleaguered Prime Minister, Theresa May.
Ever since the Conservatives’ shock poor showing at the snap election, where it failed to secure a parliamentary majority, speculation has been rife that Mrs May will soon be removed as leader of the Tories.
In recent days the PM has been described as a “horse with a broken leg”.
There have also been rumours that ministers are reportedly considering overthrowing her before the party’s conference in October.
Mrs May is at least away from her domestic troubles today, when she attends the the G20 summit in Germany.
The poll is more good new for Labour’s Jeremy Corbyn after his shock strong performance at the election.
Last month he said he could be Prime Minister “within six months” and ever since the election it appears Labour’s support is growing.