Question

Under the constitution the vice president has only what role, what is it?

Answer 1

The Vice President is also the President of the Senate. The Vice President presides over the Senate, but is allowed to vote in the Senate only when it is necessary to break a deadlock. ... 2) To preside over and certify the official vote count of the U.S. Electoral College.

Answer 2

Other than to succeed to the presidency upon the death or resignation of a president, a vice president's only constitutional duty is to preside over the Senate.