Harris and former President Donald Trump are now deadlocked in a race that has taken presidential politics into territory uncharted in the modern era.

Within three days in late July, Trump survived an assassination attempt on the campaign trail, was formally nominated by his party, and named Sen. JD Vance of Ohio as his running mate.

Less than a week later, President Joe Biden withdrew from the race and endorsed Harris. She became the Democratic nominee on Aug. 5 without winning a single primary election, something that hasn't happened since 1968.

"[It's] like a giant jigsaw puzzle, with the pieces changing practically every day, or at least a couple times a week," Susan MacManus, a political scientist from Florida, told The Epoch Times.

Ken Kollman, a political science professor at the University of Michigan, made a similar comment.

"Things have gotten really scrambled," Kollman told The Epoch Times.