This could be due to death, resignation, or impeachment. Before the passage of the 25th Amendment, it had never been very constitutionally clear who would assume the office of President in the event of one of these situations. Once the Vice President assumes the role of President, the new President must choose a new Vice President, from the same party, and have this person approved by Congress. An example of this is when Vice President Cheney took over as President from George W. Bush in 2002 and 2007 for President Bush to undergo colon