The big exception is if Cheney should resign and Bush names Obama as VP, once Obama is confirmed by the House and Senate (Only position that requires BOTH houses approval) bush can then resign and Obama is President. I just do NOT see that happening, they is to much Bush can do from November 5th, 2008 till January 20th, 2009 for him to give up that power (And I do NOT se Cheney resigning either, for the same Reason).
Amendment XXV that set up the right of the President to appoint a New VP if the VP position is no longer filled (only done twice, once by Nixon when Agnew Resigned do to his taking bribes while Governor of Maryland, and then Ford when he became President upon Nixon's Resignation to avoid Impeachment for Watergate. Nixon named Ford, Ford Names Nelson Rockefeller.
For Amendment XXV passed in 1967:
http://www.law.cornell.edu/constitution/constitution.amendmentxxv.htmlJanuary 20th is the day of inauguration since passage of the XX amendment to the Constitution, it also cleared up when the inauguration takes place (Noon Washington DC time):
http://www.law.cornell.edu/constitution/constitution.amendmentxx.htmlAs to FDR taking over the Treasury on the days after he won the election, he actually declined the offer by Hoover to do so. The worse of the bank crisis had NOT yet run and any solution proposed during the period between the election in November and the first day of his administration (Which was March 4, 1932 for it was BEFORE passage of the XX amendment) would have been "tainted" by being associated with Hoover, so FDR stayed away from any active control over the Administration so he could start anew on March 4th, 1932.
From the FDR Presidential Library:
http://www.nps.gov/archive/elro/glossary/great-depression.htmNow this is from a gold bug web site but if you read between the lines you will see FDR did NOT want to be involved with Hoover's administration at all:
http://www.gold-eagle.com/editorials_05/laborde011305.htmlAnother right wing site with the same claim but more date (Read it for the Data NOT the Argument):
http://www.rumormillnews.com/cgi-bin/archive.cgi/noframes/read/44414Now both web sites says FDR did this to smear Hoover, I doubt it, Hoover's name was already , and it was that reputation that FDR did NOT want to share with Hoover. Thus the refusal of FDR to deal with Hoover and the Refusal of the Democratic Congress to deal with Hoover.
The wisdom of FDR's action is best seen in the subsequent improvement in the Economy after March 4th, 1932:
http://books.google.com/books?id=HjeMj1DB6w8C&pg=PA428&lpg=PA428&dq=Bank+Crisis+of+1933&source=web&ots=uJaqXiKuD0&sig=7WQTEBG5XIdGL9j-WFHconx3jUk