Tens of thousands of people took to the streets in cities across the nation on Saturday in a defiant stand against President Donald Trump. This marks the anniversary of his inauguration amid a government shutdown. The 2018 Women’s March — round two of an event that in 2017 proved to be the largest single-day protest in American history — includes a main event in Las Vegas on Sunday and more than 250 marches in the U.S. and overseas.