The press is waiting until after McCain secures the nomination to reveal how poor his health really is. With FDR, they were able to hide his wheelchair for over a decade. With McCain, the truth comes out after Minneapolis.
Yep, that is why they are definitely pushing his nomination. His age and health will be made into a big issue come Novemeber, especially if against Obama. He is not the best choice to be the nominee, for innumerable reasons, but that one is going to be the most apparent if not the most debated.