Trivial Tuesday, Election Edition

This week's question is not an official Trivial Tuesday.  This is a special election edition and the winner will not pick next week's category.  SInce I was absent last week, I did not inform Manuel that he won and he was not able to give a category.  So, Manuel, let's have one. This week's question has to do with past elections (all answers are prior to the Nov. 4, 2008 election):
How many presidents have we had? How many vice presidents? Who will be the president on November 5, 2008? Why had no president prior to FDR run for more than two terms?
OK, I think that's enough.  Good luck.