One recent poll has the Tories and LibDems neck and neck in seats. Other recent polls have the LibDems 1-5 seats behind.
This election is completely different to anything that has come before. So many factors have combined to hurt the Tories:
A) Widespread fury at 14 years of misrule.
B) Endless scandals, from PPE to Brexit mismanagement to Partygate.
C) Reform UK offering a viable protest vote for RW voters who would never consider voting LibDem, Greens or Labour.
D) Resurgent LibDems.
E) Dire Tory election campaign, maybe the worst in their history. D-Day, Sky TV, inside bets on the election date - you name it, they've blown it. Gaffe after gaffe after gaffe.
That leaves them uniquely vulnerable in a way they've never been before - and never will be again.
If the LibDems pull it off, with the help of widespread tactical voting, they'd get to be the Opposition, and face Labour at PMQs. The Tories would be stuck on the back benches.
It's hard to overstate how transformative that would be compared to the political experience of the last decade.