DHS police handcuffed one of Rep. Jerry Nadler aides in the congressmember's Manhattan office, which is in the same federal office building as an immigration courthouse. DHS officers entered Nadler's district office and accused staff members of "harboring rioters." A Nadler staffer is seen crying and being handcuffed. Another officer is at a door trying to enter a private area of the office while a staffer asks for a warrant. DHS later said in a statement that "one individual" " the woman seen being handcuffed " had blocked police from performing a security check they intended to do based on information there were protesters in the lawmaker's office. Later that day, protesters gathered outside of the federal building, demonstrating against ICE. "If this can happen in a Member of Congress's office, it can happen to anyone " and it is happening," said the veteran congressman. Video: YouTube Link