Obama mocks Trump over crowd size in new Harris campaign ad

The Harris campaign on Tuesday unveiled a new ad using one of former President Trump's chief rivals to mock him over his fixation on crowd size.

The ad, titled "Crowd Size," features footage of former President Barack Obama's remarks at the Democratic National Convention in which Obama said Trump was a "78-year-old billionaire who has not stopped whining about his problems."

The ad cuts to Trump at a rally, talking derisively about the crowds Vice President Harris had drawn...