Washington braces for anti-Trump protests, New Yorkers march

Police have pledged repeatedly to guarantee protesters' constitutional rights

Washington turned into a virtual fortress on Thursday ahead of Donald Trump's presidential inauguration, while thousands of people took to the streets of New York and Washington to express their displeasure with his coming administration.

Some 900,000 people, both Trump backers and opponents, are expected to flood Washington for Friday's inauguration ceremony, according to organizers' estimates. Events include the swearing-in ceremony on the steps of the U.S. Capitol and a parade to the White House along streets thronged with spectators.

The number of planned protests and rallies this year is far above what has been typical at recent presidential inaugurations, with some