Former Vice President Joe Biden's campaign released this ad mocking President Trump for constantly attacking him, asking why the president is "obsessed" with the Democratic 2020 frontrunner.
"Why are you so obsessed with me?" Biden asks on Twitter alongside the ad.
"Donald Trump has made it clear," the ad says. "He’s got Joe Biden on his mind. Because Trump knows Biden will beat him in Pennsylvania, Michigan, and Wisconsin – the states we need to take back the presidency."