U.S. presidential candidates Donald Trump and Kamala Harris shake hands before a televised debate. (Photo via Facebook.)

Who’s the most powerful person on Earth? Many people would say it's the American president. Why? Because the United States is a superpower – and the president is its leader. So when there’s a U.S. presidential election, the whole world pays attention.

The next presidential election takes place on November 5. The race has been full of drama, including a last-minute change of leadership and two assassination attempts against former president Donald Trump.