President Donald Trump learned what many Black children find out at an early age: you never, ever try to talk over a Black woman.

The President's reality check moment came on Tuesday during The President and the People: A 20/20 Special Event on ABC During the event, Philadelphia professor Ellesia Blaque stepped up to express her concerns about healthcare and refused to be bullied by the commander-In-chief.   

Journalist Phil Lewis captured the moment on Twitter. 

"Should preexisting questions, which Obamacare brought to fruition, be removed?" Blaque asked.

While she still had more to say, the President jumped in and said "no."

Blaque, who Business Insider reports is an assistant professor from Philadelphia, gracefully stood her ground.

"Please stop and let me finish my question sir," she said.

The concerned citizen continued with her question while the President froze in his seat at the National Constitution Center in Philadelphia.

"Should that be removed within a 36 to 72-hour period?" the voter asked. 

Blaque pressed Trump by highlighting her own struggles with pre-existing conditions and the role Obamacare played in saving her life. She spoke about a disease which started in her skin when she was born, then eventually moved to her eyes, optic nerves and brain.

"When it hit my brain, I was automatically eligible for the rest of my life," she said. "I chose instead to get a bachelor's degree, a master's degree, a PhD and become a professor."

The president jumped in and said "that's great."

But Blaque didn't come for his praise.

"It is great, but I still have similar healthcare problems," she said. "With co-pays, I'm still paying almost $7,000 a year in addition to the copay."

Without her medication, Blaque said she "would be dead." She grilled the President about what he is going to do protect people like her who work hard.

"It's not my fault that I was born with this disease," Blaque said. "It's not my fault that I'm a Black woman and in the medical community, I'm minimized and not taken seriously. I want to know what you're going to do about that." 

CNN's Don Lemon highlighted several other moments from the town hall in which Trump was confronted about various issues. One of the topics focused on the President's refusal to wear a mask during the pandemic.

"A lot of people don't want to wear a mask," Trump said during the town hall. "A lot of people think masks are not good."

George Stephanopoulos, who moderated the town hall, said "who are those people?"

The President used waiters as an example.

"I saw it the other day. They were serving me and they're playing with their masks," he said. "I'm not blaming them. I'm just saying what happened. They're playing with the mask. They're touching it and then they're touching the plate. That can't be good."