PETER DOOCY ASKS BIDEN WHAT HIS TOP PRIORITY IS. BIDEN REPLIES: "THEY'RE ALL IMPORTANT, UNLIKE YOU . . . "; THEN AFTER BIDEN OFFERS TO TAKE THE FOX NEWS CORRESPONDENT DOG-FACED PONY SOLDIER BEHIND THE WOODSHED -- AND DOOCY ACCEPTS -- BIDEN RECALLS THAT HE'S GOT AN IMPORTANT ERRAND TO RUN.