Who's lying?

So who is lying about this?

The U.S. State Department on Tuesday flatly rejected an assertion by Prime Minister Ehud Olmert that he had convinced the Bush administration to abstain from last week's United Nations resolution calling for an immediate truce in the Gaza Strip.

State Department spokesman Sean McCormack also denied that the abstention embarrassed Secretary of State Condoleezza Rice.

If I had to guess, I'd say both, one way or another.