Among them are two potential candidates for Mr. Bush 's job : Senator Chuck Hagel of Nebraska , who in an interview in the current issue of U.S. News & World Report said the administration 's assertions on Iraq were '' disconnected from reality , '' and Senator John McCain of Arizona , who on NBC 's '' Meet the Press '' on Sunday disputed Vice President Dick Cheney 's characterization last week of the Iraqi insurgency as being in its last throes .