OP/ED: The Democratic presidential nominee and the former senator are "showing machismo-obsessed Republicans what real alphas look like," says Mika Brzezinski.

Vice President Kamala Harris and former Republican Congressperson Liz Cheney launched a three-state campaign tour in Chester County, Pennsylvania, on Monday.

Obama himself came out to Eminem ‘s “Lose Yourself,” going so far as to rap along the first few bars of the song. “I was feeling some kind of way following Eminem,” he said, reciting the opening verse from the track. “I thought Eminem was going to be performing, I was going to jump out. Love me some Eminem.”

The former president got a rock star welcome from several thousand people after being introduced on stage by rap icon Eminem. “It’s great to be back in Motor City,” Obama said. “I heard there was another rally here on Friday night but it was a little smaller than this.