Answer:
The Vice Presidency hasn't become a more important office in the last fifty years.
Step-by-step explanation:
The vice president of the United States is the first on the presidential succession order, he succeeds the president in case of death, resignation, incapacity or dismissal of the latter. He is elected at the same time as the latter by the same constituency of electors. Constitutionally, he also holds the presidency of the United States Senate.
The current Vice President of the United States is Mike Pence, a member of the Republican Party, since January 20, 2017.