Sen. John McCain praised Mayor Bloomberg yesterday - talking up Hizzoner as a strong candidate for governor and refusing to rule him out as a vice presidential candidate. Asked during an interview with The Post whether the term-limited billionaire mayor should be able to seek re-election to a third term, he said there's been "some speculation" about Bloomberg trying to move to Albany. "Do I think he could serve the state of New York and the country well? Of course," McCain said, during a sitdown at the New York Hilton. He was also asked about having the mayor as his...