This happened in 1800 when VP Thomas Jefferson ran against President John Adams. In those days the presidential candidate with the second most votes became vice president so Jefferson was the VP because he lost to Adams in 1792.
Since then the Constitution has been amended so that the president and vice-president are from the same party. so it is not likely to happen again.
Thomas Jefferson
Yes, Bob Dole ran for president against Bill Clinton in 1996.
1980, against Reagan and Carter, as an independent
A Democrat could run for the Democratic nomination against an incumbent Democratic President. This happened in 1980 , for example, when Ted Kennedy ran against President Carter. A democrat would not run on the same party lines as another Democrat since the Democratic party can only nominate one candidate themselves. So a third party could nominate a Democrat to run for president if that Democrat lost the Democratic nomination to someone else.
Ulysses S Grant won that year.
Legal schollars are not agreed on this point, but there is no explicit limit in the Constitution to how many terms a person may be elected to the office of Vice-President. The two term limit applies only to the office of President. YES they can
if they want to,yes
Spiro Agnew.
President Arthur never ran for President.
Yes they can serve two terms
Henry Crawford
nope
NO-- Nobody can be forced to run for president or for any other elected office.
He never was a president, but he did run for president in the 1860 election against Lincoln, Douglas, and Bell.
Thomas Jefferson
yes
Taylor did not run against Polk but rather against Lewis Cass of Michigan in 1848. Polk was the incumbent president but chose not to run for re-election.
John Adams's rivalry against Thomas Jefferson was what led him to run for president