It's a line graph which shows Labour at a near vertical climb in popularity and the Tories in a near vertical crash.
That's about accurate.

I mean, there's no hope they can totally overcome the remaining gap in the next few days, but it's still amazing. A few weeks ago, everyone was talking about how Labour was set for an historical thrashing.
They've been resoundingly unpopular for... so long that Tony Blair is a distant (and disturbing) memory. But it's been interesting to have both parties in the spot-light. Turns out Theresa May is (as someone put it in a tweet): 'The lady's for turning, but not for turning up'.

And some of their policies are just atrocious (look up their health & social care 'reform' - quickly dubbed 'dementia tax', which they did a swift U-turn on after realising that it'd hit their voters...), whereas Labour have gone full socialist, promising to re-nationalise everything.

At least we're not bored.