President-elect Donald Trump entered St. John's Church, known as the "president's church" in Washington DC Friday morning, along with his wife and children, including Ivanka Trump and her husband Jared Kushner.
According to CNN, this year's version of the traditional pre-inauguration religious service will focus on when God chooses a leader, specifically the biblical figure of Nehemiah, who rebuilt the walls that protected Jerusalem.
In a ceremony likely to draw 900,000 people, including protesters, Trump and his vice president, Mike Pence, will take the oath of office at midday (1700 GMT) outside the domed US Capitol, with US Chief Justice John Roberts presiding.
"It all begins today!" Trump wrote in a note on Twitter at about 7:30 a.m. "I will see you at 11:00 A.M. for the swearing-in. THE MOVEMENT CONTINUES - THE WORK BEGINS!"
Security was tight around the White House and Capitol. Streets near the president's home were blocked to traffic by empty buses and dump trucks or temporary pedestrian security checkpoints where law enforcement officers and National Guard troops checked people's bags.
Checkpoints around the National Mall in front of the Capitol opened early to begin admitting guests, some of them wearing red caps bearing Trump's "Make America Great Again" slogan. They were barred from bringing selfie sticks, coolers for beverages, and long umbrellas despite the rainy weather.
Most of the area was orderly, but about 100 protesters shouted slogans near one checkpoint and linked arms to block people from entering. Police in riot gear pushed them back into an intersection to allow people attending the inauguration to reach the checkpoints.