The Mirror claims Bill Clinton has accused Tony Blair of "betraying" him over the Iraq War.

The former president has reportedly told Democratic Party friends that the prime minister should have challenged President George W. Bush more.

A senior Labour source who visited the Democrats in the US revealed: "Clinton feels betrayed by what Blair did.

"He feels the PM gave Bush respectable cover for the war and under-estimated his influence, which could have been put to better use.

"But he has made it clear he's not going to hold a grudge."