Protests and marches have long been a part of American history; they are part of what makes America great. The First Amendment protects the right of Americans to speak and to assemble publicly.

Unfortunately, what we witnessed Saturday in Charlottesville, Va., revealed the ugliness of America. What's worse is that in its aftermath, President Donald Trump had an opportunity to show real leadership but couldn't bring himself to do it.

White supremacists, in a protest billed as a "Unite the Right" rally, gathered to rail against the removal of a statue of Confederate Gen. Robert E. Lee from a city park. The protests started out peacefully but as the day went on, fights broke out between the white supremacists and counterprotesters, including Black Lives Matter activists, faith leaders and the anarchist group Antifa.

When the groups spread to other parts of the city, police declared the gathering an unlawful assembly and began arresting people who remained. But that didn't stop the violence as fights continued to break out. A video showed some people encouraging fights and others using pepper spray against each other.

Once police dispersed most of the crowd, a Dodge Challenger plowed into a crowd of protesters, hurling people into the air, killing one and injuring 19 others. The driver put the car in reverse, sped backward and managed to escape before being arrested later.

At a time when such ugliness took place in the hometown of founding father Thomas Jefferson, Trump had a golden opportunity to condemn the violence and speak out against the white supremacists and white nationalists, many of whom supported him in the election against Hillary Clinton. The country needed the leader of the nation to forcefully call out these ugly — and un-American — interests.

There is no room for violence from any group, including Antifa. But on this day, it was all about white supremacists, neo-Nazis and white nationalists.

The best President Trump came up with is to say, "We want to get this situation straightened out in Charlottesville. And we want to study it. And we want to see what we're doing wrong as a country." He also blamed "hatred, bigotry and violence on many sides."

The country needed to hear the president specifically condemn white supremacists and make clear to them that while they have a First Amendment right to express their views, their hatred and bigotry run counter to the values of the United States. There will be no toleration of violence.

On Saturday, President Trump failed his country.