“OPTIMISTIC” OBAMA ADMONISHES “SELF-DECLARED SAVIOR” TRUMP THAT “FASCISTS OR COMMUNISTS OR JIHADISTS OR HOMEGROWN DEMAGOGUES WILL ALWAYS FAIL”; CHARGES THAT “TRUMP IS SELLING THE AMERICAN PEOPLE SHORT”; PRESIDENT REJECTS “DEEPLY PESSIMISTIC VISION,” OF GOP CANDIDATE OF “PERNICIOUS CHANGES AND DARK FORCES,” NOTES THAT “TRUMP CALLS OUR MILITARY A DISASTER” BUT OUR TROOPS HAVE “POUNDED ISIS WITHOUT MERCY”; BIDEN RIDICULES TRUMP’S SUPPOSED CONCERN FOR MIDDLE CLASS AS “A BUNCH OF MALARKEY”; TAX WALL STREET PARTY, ON THE SCENE IN PHILADELPHIA, TEACHES DEMOCRATS HOW TO FIGHT TRUMP AND DEFEAT HIM