His word against his...however...this IS Constitutionally grounds for impeachment. If Obama did say this and is acting this way for political gain...he has opened the door himself to being thrown out of office.
I usually don’t blow the horn for impeachment because there really needs to be an act that goes across the line and this is it folks...we have our impeachment moment.
Even knowing that this will wind up being a "he said, she said" kangaroo court, we ought to hammer on our Reps to file the articles of impeachment anyway, just to push the rats to the wall.
We could still chop Bozo off at the knees, even if impeachment proceedings fall flat.
Do they still use those tape recorder thingees in the Oval office? Hope Kyl was holding a mini recorder under a pile of papers in his hands.