Reagan’s landslide victory in 1980 was proof that

The correct answer is Americans were ready for a change in leadership.

Viewed as one of the greatest presidents in the United States, Ronald Reagan was a controversial political figure. His opponents ridiculed him for his diplomatic gaffes and called him an "uneducated cowboy". In contrast, he was responsible for one of the most expressive highs in the American economy and left the government with more than sixty percent popularity.

After pursuing an artistic career in Hollywood studios, starring in bang-bang films, Reagan entered political life for the Democratic party. In a short time he reversed his political orientation by joining the Republican wing. After managing to be elected twice as governor of California, Reagan arrived at the White House in the early 1980s.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.