 NEAR TRIPLE DIGITS ALMOST ALL WEEK, THINGS ARE GOING TO COOL DOWN A LITTLE BIT INTO THE LOWER 90S NEXT WEEKEND. FOX NEWS, I'M RON TRUSTER AND SOME HOUSE DEMOCRATS ARE CIRCULATING LETTERS ASKING JOE BIDEN TO DROP OUT OF THE PRESIDENTIAL RACE. FOX'S MADELINE RIVERA. PRESIDENT BIDEN MAY SEEM CONFIDENT ABOUT HIS RE-ELECTION PROSPECTS, BUT MANY DEMOCRATS ON CAPITOL HILL DON'T FEEL THE SAME WAY. IF ANYTHING, SOME OF THEM ARE EVEN MORE NERVOUS NOW.