In Phoenix, Mark Penn, a Democratic pollster, pointed out that Mr Bush is still seen as stronger, more consistent and more likeable than Mr Kerry.

ECONOMIST: Can John Kerry make himself look more moderate?

The Clinton campaign was a nest of hissing vipers, in which egotistical operatives such as Mark Penn and Howard Wolfson spent their time pursuing contradictory strategies and leaking to the press.

ECONOMIST: Lexington

Her team will be anxiously studying the opinion polls over the next few days, to see what effect - if any - the Mark Penn controversy has had on those working class voters, on whom she is depending for victory.

BBC: Trade and jobs to fore in US election