The mother of a police sergeant who was killed by an illegal alien appeared on "Fox and Friends" to honor her son's memory, and express some of her frustrations with Washington and the state of the country.

Her son Brandon Mendoza was killed in a head-on collision with a drunk driver with a criminal record who'd been in the country illegally for two decades.

Mary Anne Mendoza has been trying to turn the tragedy into legislative action that would prohibit illegal immigrants from obtaining drivers licenses, and she said she has learned a lot from meetings with lawmakers and other families.

"I had no idea what a huge problem this was until it happened to me," Mendoza said. "I don't want any other American family to go through what I've gone through the last year and a half of my life."

Nevertheless, the sensitivity of the issue has made it hard to get firm pledges of support from politicians, let alone a meeting at the White House.

"I've written three letters to the President," Mendoza said. "It's disheartening to see the people he does have at the White House.

"We had been pleading with them to meet with us, to see our faces, to feel our pain and to hear our stories. And maybe understand this problem a little better and do something about it for Americans."

She also credited Donald Trump with opening "the door for us and for our stories to be heard."

Watch the interview above.

Carly Fiorina Is 'Tired of Being Insulted By Liberal Feminists'

Judge Jeanine: 'American Military Families Will Pay the Price' for Obama's Folly in Syria

Study: College Profs Overwhelmingly Donate to Dem Candidates