The Gold Star father who came to Indianapolis to speak about civil discourse ripped into President Donald Trump, calling him "illiterate and uneducated" in an interview with IndyStar on Saturday evening.

Khizr's Khan's characterization of the president came while meeting with reporters following the event, "Talking Through Unity and Civility with Khizr Khan," at St. Luke's United Methodist Church. His comment was in response to a question about Trump's rollback of the Deferred Action for Childhood Arrivals program.

Khan is the Gold Star father who challenged Trump to rethink his stance on Muslims' and religious minorities' place in society during the 2016 presidential election.

Khan's son was killed in 2004 while serving as a U.S. Army captain in Iraq. Khan came to public attention when he blasted Trump's stance against immigrants and Muslims in a speech at the Democratic National Convention.

John Krull, host of "No Limits" on WFYI-FM (90.1), moderated Saturday night's event.

The church was filled with more than 1,000 people who came to hear Khan talk about the the need for people to speak truth to power.

To Khan, this includes speaking up, even if it makes you uncomfortable.

"Democracy is nothing with the tyranny of the majority," Khan said. "What stops tyranny is the rule of law."

The conversation between Khan and Krull ranged in topics, from Khan's beginnings in America from the Punjab province in Pakistan to his love for constitutional law.

The night became emotional when Khan explained why he continues to travel the country to speak with crowds, despite spending his life's savings to do so.

"My son offered his life to defend American values," his voice shaking. "I would be betraying his oath ... if I did not continue to speak."

After the event, in the meeting with reporters, Khan was asked about his thoughts on Trump's recent plan to roll back on former President Barack Obama's program which grants amnesty to certain underage undocumented youths.

Khan said: "It is totally uncompassionate by an illiterate, uneducated president who would cause that harm to the nation and country."

"Hopefully congress will address this," he said.

Khan, who lives in Charlottesville, Va., was back in the public eye recently after the city erupted in violence involving white separatists and counterprotesters. He appeared on CNN to speak about the clash.

"How dare they carry the Nazi flag alongside (the) American flag," he said, suggesting the spectacle will prove to be "the first nail in the coffin of racism" because communities across the country will rise up against it.

As for the president's response, he said, "America is discovering the morally compromised Donald Trump."

St. Luke's partnered with the Desmond Tutu Center, Islamic Society of North America, Muslim Alliance of Indiana, Women4Change Indiana and ACLU Indiana to bring Khan to Indianapolis.

Khan is a lawyer who was born in Pakistan and moved to the United States with his wife, Ghazala, in 1980. The couple had three sons and they became American citizens in 1986.

They entered the national debate when they appeared at the DNC's 2016 convention to challenge the Republican nominee's proposed Muslim travel ban, among other things. Here are two paragraphs from that speech:

"Donald Trump, you're asking Americans to trust you with their future. Let me ask you, have you even read the United States Constitution? I will gladly lend you my copy. In this document, look for the words 'liberty' and 'equal protection of law.'

"Have you ever been to Arlington Cemetery? Go look at the graves of brave patriots who died defending the United States of America. You will see all faiths, genders and ethnicities. You have sacrificed nothing — and no one."

Humayun Khan is buried at Arlington National Cemetery. He was 27 when he was killed in a suicide bombing attack in Iraq. He was posthumously awarded a Purple Heart and a Bronze Star.

Ending the evening, Khan had last words of advice for the crowd: "Do not be quiet."

"You will look back and feel so proud that you served this country, that you stood for the goodness of America."

Call IndyStar reporter Fatima Hussein at (317) 444-6209. Follow her on Twitter: @fatimathefatima.