Let's just consider three of today's events:
i) Gordon Brown has led his party to Michael Foot-era levels of support.
ii) Peter Mandelson has very publicly knifed his boss on national televsion.
iii) Nick Clegg has said that the Tories have the "first right" to form a government.
Senior Labour figures are suggesting that a deal with the Lib Dems remains possible – but Brown's fingernail grip on the premiership looks to be weakening by the minute.