Tens of thousands of people are coming to march in Washington D.C. during the 45th president's inaugural week. While a small number of the people are marching in support of President-elect Donald Trump, most of the people plan to protest the incoming leader. Each protest is expected to be from 50 people to 200,000 in size, but any protest smaller than 25 does not require a protest. D.C. officials are expecting 800,000 - 900,000 people to participate, a significant decrease from Obama's inauguration in 2009 that drew 1.8 million.