Protest organizers on Facebook said "Baltimore has a message for Trump and his supporters: we don't support him or any of the hate, racism, sexism, homophobia, ableism, Islamophobia, or transphobia that came with this election. Wherever he goes, he and his fans will see our resistance."
The Army-Navy college football game at Baltimore's M&T Bank Stadium is often attended by presidents and presidents-elect, who sit on the Army side of the stadium for one half of the game and the Navy side for the other.
"[W]e need to show him today and every day that we reject his right-wing, corporate agenda and that he is not welcome in Baltimore," the Facebook event page, organized by the Mid-Atlantic General Defense Committee, said. It went on to criticize Trump's cabinet picks, saying they would eviscerate key social services.
Organizer Charlie Kerr told the Baltimore Sun that he and other organizers felt it would normalize Trump to do nothing.
— Baltimore Brew (@BaltimoreBrew) December 10, 2016
"We thought it was important to show there are people who oppose him and don't want him in our town," Kerr said.
Maryland is traditionally a Democratic state, and voted overwhelmingly for Democratic presidential contender Hillary Clinton in last month's election.
Baltimore saw massive protests last year after the death of 25-year-old Freddie Gray while in police custody.