Amani al-Khatahtbeh, founder of the Muslim Girl website and the first Muslim woman to run for Congress in New Jersey, was due to fly from Newark to Charlotte, North Carolina, on 14 November.
She alleges that a man cut in front of her in the security queue, and that she challenged his behaviour.
“I had the craziest experience in TSA this morning,” she tweeted.
“An entitled white man behind me insisted on cutting me in line because I was ‘still taking my shoes off.’
“When I said he could wait like everyone else, he started going off about how he’s ‘pre check’ and ‘first class’”.