Kamala Harris arrives in Chicago for Democratic National Convention

Pennsylvania has been a key battleground state in recent presidential elections, with Donald Trump winning in 2016 and Joe Biden winning in 2020.

A new CBS News poll shows President Trump and Mrs. Harris locked in a tight race in key states including Pennsylvania, Michigan and Wisconsin.

Mrs. Harris indirectly criticized her opponent in her speech on Sunday, calling him a “coward” who focuses his politics on disparaging his rival.

“The real measure of the strength of a leader as we know it is who you inspire,” she told supporters.

“A person who beats up another person is a coward.”

A day earlier in the same state, President Trump called his Democratic rival a “crazy woman” and boasted that he was “much better looking” than her.