Watch Replay: Donald Trump Sworn In, Makes First Address as President Of United States

WASHINGTON, DC — President Donald J. Trump waved to supporters lining Pennsylvania Avenue for a celebratory parade Friday after he was sworn in as the 45th president of the United States. The new president addressed Americans earlier in the afternoon with a speech that underscored that a new era of uncertain and unpredictable presidential politics is underway in Washington, D.C.

• See below for a live replay of the inauguration.

After beginning his comments with a nod toward bringing the country together to "get the job done," Trump criticized many of the politicians sitting behind him during the swearing-in ceremony. They are politicians he will have to work with over the next four years to get the job done.

"For too long, a small group in our nation's capital has reaped the rewards of government while the people have borne the cost," Trump said. "Washington flourished, but the people did not share in its wealth. Politicians prospered, but the jobs left and the factories closed. The establishment protected itself, but not the citizens of our country.

• Read Trump's full inaugural remarks.
• Watch live coverage of the inaugural parade.

"Their victories have not been your victories. Their triumphs have not been your triumphs. And while they celebrated in our nation's capital, there was little to celebrate for struggling families all across our land."

Trump said Americans want great schools, safe neighborhoods and good jobs, calling these "reasonable demands." Trump said he would follow two rules: "buy American and hire American."

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Without irony, supporters have had an interesting word to describe their emotions at the beginning of this new presidential era: Hope. It's a term that was used to great effect in Obama's 2008 campaign that promised big ideas and changes to the way that Washington does business. So, it's not entirely surprising. With an unconventional campaign that focused on a lifetime outside of politics, Trump will bring a different perspective to the White House and how Washington does business.

The inauguration was to be followed by a parade down Pennsylvania Avenue and celebratory balls. Then, the real work begins as the Senate continues confrontational Cabinet hearings and Trump enters the Oval Office with a stack of "day one" campaign promises to fulfill on immigration, trade, health care and more.

Inaugural of The 45th President

Trump, Vice President-elect Michael Pence and their families waited inside the Capitol just before the program began at 11:30 a.m. The U.S. Marine Band, also known as "The President's Own," which has played at every inauguration since Thomas Jefferson’s ceremony in 1801, played the prelude.

Announcer Steve Ray introduced Trump and Pence as well as the past presidents attending: President Bill Clinton, President George W. Bush and President Jimmy Carter. Sen. Roy Blunt, a Republican from Missouri, conducted the “call to order” and delivered welcoming remarks.

Following Blunt’s remarks, Cardinal Timothy Michael Dolan, the Rev. Samuel Rodriguez of the National Hispanic Christian Leadership Conference and the New Destiny Christina Center’s Pastor Paula White-Cain delivered the readings and invocation. In an interview with Catholic News Service, Dolan shared that for his reading he chose Wisdom, Chapter 9, King Solomon's prayer for wisdom in leading Israel. The program continued with a musical selection from the Missouri State University Chorale.

U.S. Supreme Court Justice Clarence Thomas swore in Pence before a performance by the Mormon Tabernacle Choir.

Trump took the oath of office administered by U.S. Supreme Court Chief Justice John Roberts. The oath, as specified by the Constitution, is sworn as the president-elect lays his left hand on the Bible and raises his right hand. Trump was to take the oath of office on Friday with his hand on two Bibles: his own, and one used by Abraham Lincoln in 1861. The Lincoln bible was to be borrowed from the Library of Congress.

Trump looked out on thousands of supporters and likely some protesters, on the National Mall; also in view: port-a-potties, Jumbotrons for those who don't have a front-row seat, speakers and fencing for road blocks and security checkpoints.

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Politics Under a New President

Carrying a sign that reads "You're Fired" with the "O" drawn as Obama's campaign logo, Austin Wood from Knoxville, Tennessee, said Friday morning that he is excited about a Trump presidency.

"I'm hoping he's going to keep his promise to unify the country and be a president for everybody," he said. "I hope that what people viewed as hate … wasn't legitimate. That he's going to unify all of us and do what is best for the country."

But, following a presidential election cycle that seemed to promote divisive politics over unity, it's not surprising that there are many protesters in D.C. on Friday, and an even larger crowd expected on Saturday for the Women's March on Washington.

Protester Michelle Nungester traveled from Sarasota, Florida, and she had a message for Trump supporters during a rally Thursday night. "They're in for a rude awakening," she said. "He has a long verified history of being a con man… he blows steam and says whatever he wants."

By Friday morning, protesters crowded ticket lines and sometimes chaining themselves together to block public access to the inauguration. Images shared on social media showed police pushing protesters back in some areas. There are 3,000 officers from across the country in D.C. to support local law enforcement.

The large crowds arriving early and protest activity led to delays for some trying to get in to see the inauguration. "It's worth the wait," said Bob Jones from Hagerstown, Maryland. "He'll make changes in the world… the taxes of goods coming in the U.S. And changes in the government. I know Donald Trump will do a good job."

Protests broke out on the streets of D.C. following the swearing in. During a mid-afternoon update, police reported a "small group" of 95 protesters had been arrested and there was isolated damage to storefronts and few injuries. One outburst of violence soon after that report involved debris set on fire in the city street, with police responding with flash-bang grenades.

More: Protests Get Out of Hand: At Least 95 Arrests in Washington DC

Includes reporting by Mary Ann Barton, Patrick Martin and Dan Taylor