Former President Barack Obama hit the campaign trail on Thursday for Democrats running for governor in New Jersey and Virginia, and told voters to reject the "old politics of division" that date back centuries. "It's the 21st century," he said, "not the 19th century. Come on!" This was his first time out stumping since he left the White House, and Obama warned of people who "demonize" those who don't agree with them in order to "get the base all riled up because it provides a short-term tactical advantage." While speaking in Virginia on behalf of Ralph Northam, Obama was focused on his opponent, Republican Ed Gillespie, but his comments could also apply to Trump.