Georgia Rep. John Lewis John LewisPelosi orders Capitol flags at half-staff to honor Ginsburg Kamala Harris: Black Americans have been 'disproportionately harmed' by Trump LWCF modernization: Restoring the promise MORE (D) on Monday said people attempt to heckle him in public by shouting out President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE's name, while dismissing the idea that such taunts faze him.

The civil rights icon described a recent incident when he took a flight from Atlanta to Washington on "Lift Every Voice," a new podcast hosted by Sen. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.).

"I was on a flight from Atlanta and I'm walking down the aisle. And the gentleman said as loud as he could, 'Trump!' So I just kept walking," Lewis told Booker.

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Lewis said he brushes off the remarks and continues with his day when such incidents occur.

"I didn't say anything. And sometimes I'm walking in the airport in different places. I guess [they think] they're getting to me or harassing me. I've been called many, many things, but I'm not going to let anything get me down. I'll keep walking, I'll keep moving," he continued.

Lewis, who worked closely with Dr. Martin Luther King Jr., recalled how the civil rights leader inspired him to become involved in the movement when he was a young college student.

Lewis said he feels some of the gains they had successfully made during the civil rights movement are slipping away under the Trump administration.

"I do think under this administration that we are losing some of the gains ... we cannot let that happen," the Georgia lawmaker said, pointing to the August white nationalist rally in Charlottesville, Va, as an example.

"We must be bold and fight in a nonviolent fashion. Too many people died to bring us where we are today. We cannot let their deaths be in vain," he continued.

The Democratic lawmaker's appearance on Booker's first podcast episode takes place on Martin Luther King Jr. Day.