3:08 PM PT -- D.C.'s Metropolitan Police Department tells TMZ ... they've made 10 arrests so far in connection to the protests going down in town -- with charges ranging from firearm violations to simple assault ... as well as disorderly conduct and assaulting an officer.
Protesters and counter-protesters got into it as the crowd grew in size throughout the morning.
Trump breezed past the demonstrators in downtown Washington D.C. in his motorcade, as the crowd began to grow. The event is billed the "Million MAGA March" which includes 'Women for Trump' and 'Stop the Steal.' Many of them are marching to protest the election results, claiming without evidence there was massive fraud with mail-in ballots.
There are counterdemonstrations with anti-fascist and anti-racism groups ... always a recipe for confrontations and violence.
The Trump demonstration was promoted by the Proud Boys, Infowars and other right-wing orgs.
Trump tweeted Thursday, "Heartwarming to see all of the tremendous support out there, especially the organic Rallies that are springing up all over the Country, including a big one on Saturday in D.C. I may even try to stop by and say hello. This Election was Rigged, from Dominion all the way up & down!"
Trump may be off to his golf course. As we reported, once he leaves The White House he's poised to make a million dollars plus a pop for speeches. We're told he's also eyeing the possibility of forming his own broadcast network which he would use for the next 4 years and then run again in 2024.