Why did the office of the vice president become more important with more responsibilities as the 20th century progressed

The office of the Vice President has become more important with more responsibilities as the 20th century progressed because

the role of the vice president has evolved into more of an executive branch position the Vice President is usually seen as an integral part of a president's administration and presides over the Senate only on ceremonial occasions or when a tie break vote is needed. 14 (out of 44 presidents), vice president went on to become president later on, which shows that they gained on their knowledge of administration and foreign affairs and took advantage in elections. managing client accounts of staff and assist in growth and development of staff take responsibility of one internal area of management, eg new hire orientation, tech support, new business

The number of Vice-Presidents in the 20th century that became President because of something happened to the President like President John F. Kennedy and his Vice-President Lyndon Johnson; and Richard Nixon and his Vice-President Gerald Ford. With partisan politics strongly dividing Congress, the Vice-President works as the tie-breaking vote in the Senate. Both situations reflect the greater importance of the Vice President's office (as the President's responsibilities increased in the 20th century, those of the Vice President also increased).