Jeremy Corbyn's is proving less popular than Michael Foot
The Islington MP's tenure has hit a new low according to the Ipsos Mori survey, which gave him a net rating of minus 38 after just 17 months in charge.
That's a worse rating than Mr Foot, whose disastrous leadership during Labour's wilderness years of the early 80s is widely considered to have been the party's lowest ebb.
And it comes ahead of two crucial by-elections in Labour-held seats.
In Copeland, Cumbria, Mr Corbyn could well emulate his left-wing predecessor by becoming the first opposition leader to lose a seat to the government in 35 years.
Labour is faring better in Stoke-on-Trent, where despite a haphazard campaign they could yet see off Ukip leader Paul Nuttall, who is embroiled in his own controversy over claims about Hillsborough.
Mr Corbyn's leadership has again been called into question following the resignation of several shadow cabinet members over the Brexit bill.
A fifth of Labour MPs voted against legislation in the Commons granting Theresa May the power to trigger the UK’s exit from the European Union – defying Mr Corbyn’s three-line whip.
After the landmark vote, the embattled politician faced a number of resignations from his shadow cabinet, including shadow business secretary Clive Lewis.
UKIP leader Paul Nuttall is running Labour close in Stoke
Even Scottish First Minister Nicola Sturgeon mocked the embattled Labour leader after MPs voted through the legislation.
After Mr Corbyn tweeted that “the fight starts now”, Sturgeon retorted: “How? You've just handed the Tories a blank cheque. You didn't win a single concession but still voted for the Bill. Pathetic.”
A total of 47 Labour MPs voted against the Brexit bill, joining 50 SNP MPs and seven Liberal Democrats.
Get Quotes on Home Insurance
One Conservative MP, Ken Clarke, joined them in the division lobbies – and his impassioned anti-Brexit speech saw him jokingly labelled by commentators as 'Leader of the opposition'.