U.S. President Donald Trump paid tribute Saturday to the leaders and foot soldiers of the civil rights movement whose sacrifices help make the United States a fairer and more just country, though protests surrounding his visit to Mississippi laid bare the stark divisions among Americans about his commitment to that legacy.

As Trump gazed at an exhibit on Freedom Riders at the new Museum of Mississippi History and the Mississippi Civil Rights Museum, demonstrators near the site held up signs that said "Make America Civil Again" and "Lock Him Up." Some shouted "No Trump, no hate, no KKK in the USA."

Trump spent about 30 minutes at the museums, gave a 10-minute speech to select guests inside and then flew back to his Florida estate, skipping the public schedule of the dedication ceremony held outside on a chilly day. He spent more time getting to Jackson than he did on the ground.

Trump's remarks steered clear of addressing the anger that his participation had sparked leading up to the dedication. In a deliberate voice and rarely diverting from his prepared words, the president sought to honor the famous and the anonymous for their efforts on behalf of freedom for all.

"The civil rights museum records the oppression, cruelty and injustice inflicted on the African-American community, the fight to bring down Jim Crow and end segregation, to gain the right to vote and to achieve the sacred birthright of equality. And it's big stuff. That's big stuff," he said.

"Those are very big phrases, very big words. Here we memorialize the brave men and women who struggled to sacrifice and sacrifice so much so that others might live in freedom," he said.

The national president of the NAACP and the mayor of Mississippi's capital city said they kept their distance from Trump because of his "pompous disregard" for the values embodied by the civil rights movement.

Derrick Johnson, head of the nation's oldest civil rights organization, and Mayor Chokwe Lumumba said at a news conference that they looked forward to a "grander opening" of the museum that they can attend.

Johnson, a Mississippian, charged that Trump opposes labor rights, education, health care and voting rights for all Americans.

"We will never cede the stage to an individual who will fight against us," Johnson said. "We will not allow the history of those who sacrificed to be tarnished for political expediency."

Johnson and Lumumba spoke to about 100 supporters, including some who participated in the civil rights demonstrations of the 1960s, at Smith Robertson Museum and Cultural Center, which was once the first public school built for African-Americans in Jackson. Now it's a museum to black history and culture.

Lumumba called Trump to task for "his pompous disregard for all of those factors that will not enable us to stand with him today."

The state's attorney general, Jim Hood, criticized Republican Gov. Phil Bryant for inviting Trump. "It threw cold water in the face of people who fought the battles for civil rights," Hood said.

Trump, in his speech, reflected on the past and hoped for a bright future, drawing on the achievements of civil rights veterans:

"Today we strive to be worthy of their sacrifice. We pray for inspiration from their example. We want our country to be a place where every child from every background can grow up free from fear, innocent of hatred and surrounded by love, opportunity and hope. Today we pay solemn tribute to our heroes of the past and dedicate ourselves to building a future of freedom, equality, justice and peace. "

Among the high-profile figures to stay away was U.S. Rep. John Lewis, D-Ga., a leader of the civil rights movement. Lewis, who was among scores of Democratic lawmakers who skipped Trump's inauguration in January to protest his record on race, said Trump's presence at the museum opening was an insult.

The White House accused Lewis and others of injecting politics into a moment it said could be used to bring people together.

Trump has been accused of harboring racial animosity, and critics cite his blaming of "both sides" for deadly violence at a white supremacist rally in Charlottesville, Virginia, over the summer. Trump has also relentlessly criticized NFL players for kneeling during the national anthem to protest racism and police brutality largely directed at African-American males.

During the presidential campaign, Trump called for a "complete and total shutdown" of Muslims entering the U.S.