The Vice President's entire role is:
1) become President if the President dies,
2) preside over the Senate,
3) cast a tie-braking vote in the Senate.
4) help out with whatever the President lets him do.
Presidents don't die in office very often, so role #1 is not very important. In practice, the Senate is actually run by the Majority Leader instead of the Vice President, so role #2 is a mere formality and not at all important. Most important Senate work is crafting legislation and voting in committees instead of voting on the Senate floor, and even then, the Vice President cannot vote to end a filibuster, which is realistically the only way to get something through the Senate anyway. Most of the Vice President's power comes from role #4. In other words, the Vice President's power is almost entirely dependent on the whim of the President.
The order of the Presidency is President followed by Vice President. Next in line to the presidency is the Speaker of the House.
the influence and experience of recent vice presidents
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vice president
John Nance Garner Vice President 1933-1941 under FDR
Vice Presidents are not an integral part of government decisions. Their purpose reaches more towards public appearances and speeches that the President is unable to attend.
Vice Presidency of Al Gore was born on 1948-03-31.
The vice president's most important role is to be ready at all times to assume the presidency if the president, for various reasons, can no longer perform those duties.
The Speaker of the House of Representatives is next in line for the presidency following the vice president.
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The Speaker of the House
He was the first Vice President to succeed to the presidency.
Spiro T. Agnew
Age, citizenship, and residency are constitutional qualifications for the Presidency and Vice Presidency of the United States.
The order of the Presidency is President followed by Vice President. Next in line to the presidency is the Speaker of the House.