Important notes, from the article above:
In Washington, Newsham told CNN the several hundred demonstrators who actively confronted police were vastly outnumbered by the thousands of nonviolent protesters who swarmed the nation's capital for Inauguration Day and Saturday's Women's March on Washington.
"We have been pointing out all along that this is a very isolated incident, and by and large, everything is going peacefully and a lot of folks have come to the city to enjoy this historic day, not only the Capitol but walking all around the city," he said.
And:
Acting DC Police Chief Peter Newsham said the officers' injuries were considered minor and not life threatening.