A 93-year-old Holocaust survivor said New York Rep. Alexandria Ocasio-Cortez’s past comments on concentration camps should be grounds to remove her from Congress.

Ed Mosberg survived the Plaszów and Mauthausen concentration camps and is the only one of his family to survive the Nazis’ mass extermination of Jews. In June, Ocasio-Cortez compared holding and detainment facilities for illegal immigrants on the U.S. southern border to Nazi-era concentration camps.