This is, for the most part, true, except in the case when there is an equal number of Democratic and Republican votes in the Senate on a legislative (law) item. In this case, when a vote is tied, the Vice President gets to cast the deciding vote, and would, as one would expect nowadays, vote in the way the President prefers the vote to go. When Congress is in session, the Vice President presides over the Senate to make sure rules of order are followed. This means that the Vice President uses a gavel (like a wooden hammer) to call the Senate to order, and has a microphone to recognize (call on) Senators to speak one at a time, taking turns between political parties. Additionally, the Vice President becomes President if the President should die, or becomes incapacitated (unable to do the job). This has happened several times in U.S. History. In other words, many U.S. Vice Presidents have gone on to become President, for these reasons, or because they had served as a Vice President for a President whose terms had ended. (15 V.P.’s in total have become President, as of 2020)
After George Washington declined to run for a third term as President, John Adams became the next, and second person to be elected to the highest office in the U.S. Government. He served just one four-year term. He was defeated in the next Presidential Election by Thomas Jefferson, who had served as Adams’ Vice President. A quote attributed to John Adams was, “People and nations are forged in the fires of adversity.”