Top Republicans in Washington are trying to determine whether or not John Kerry received an honorable discharge from the Navy, the reporter who's taken the lead in probing Kerry's naval records said Sunday. "I've already received an indication from high-ranking Republican officials that, basically, there is a major effort going on in Washington to find proof" of the type of discharge Kerry received, New York Sun reporter Thomas Lipscomb told WABC Radio's Steve Malzberg. Last week, Lipscomb quoted a spokesman for Sen. John Warner, who was Secretary of the Navy at the time, as saying his boss "has no recollection...