WASHINGTON (Sputnik) — The incident took place just hours before the two US major-party candidates’ debate at Hofstra University on New York’s Long Island.
“We were on our way to an interview with MSNBC when we were stopped by Hofstra security and Nassau County police just now," Stein wrote in a Twitter message.
According to Stein, officers with the Nassau County Police Department asked the candidate if she had credentials required to enter the debate premises.
The Commission on Presidential Debates set the poll-support threshold as a condition of participating in Monday’s event.
In another Twitter post on Monday, Stein cited opinion polls in asserting that 75 percent of Americans want “open debates” and deserve to have all candidates represented on stage.
Stein added that she would respond to Monday’s debate via social media.