New York Rep. Nydia Velazquez held a news conference outside the Federal Plaza Immigration Court to spotlight her bill, the "No Masks For ICE" Act.

In New York, demonstrators coalesced near 26 Federal Plaza, a 41-story federal building just a few blocks from City Hall with one of the city’s three immigration courts.

William Joyce, ICE’s deputy field director in the city, acknowledged to the lawmakers that some detainees had spent several days on the building’s 10th floor. Hilary Swift for The New York Times ...