Maybe he meant "can't believe"

Timothy Noah's Whopper of the Week:
"I don't believe anyone that I know in the administration ever said that Iraq had nuclear weapons."
-Defense Secretary Donald Rumsfeld, at a hearing of the Senate's appropriations subcommittee on defense, May 14

"We believe he has, in fact, reconstituted nuclear weapons."
-Vice President Dick Cheney on NBC's Meet the Press, March 16