• Corbyn remains the most unpopular major party leader going into an election since data was first recorded
• Taken together, these two are the most unpopular pairing we’ve seen

• Corbyn is certainly trending up, but still lags more than 20 points behind his 2017 numbers at the same stage
• Johnson now broadly where May was at the same stage

Numerous surveys suggest it may be anti-Corbyn sentiment over and above pro-Johnson feelings or Brexit attitudes that determine events on Thursday.