“Appreciate everyone’s concern,” the congressman tweeted. “Was very warm in the room this morning, was obviously dehydrated and felt a bit ill.”
Nadler added that he had received fluids and was “feeling much better.”
The episode occurred earlier in the morning at a school on Manhattan’s Upper West Side where Nadler, de Blasio and other officials were announcing expansions of the city’s speed camera program.
Footage of the incident shows Nadler slumps over, leading the mayor to stop talking and check on the congressman. Several people rush to his side, bringing him water and offering him a hand. Video from local WCBS-TV shows Nadler eating an orange and looking alert as he receives attention from doctors and others.
According to The New York Times, he was brought by ambulance early that afternoon to an area hospital for medical attention.
In a supportive tweet roughly an hour later, de Blasio, a Democratic presidential candidate, wrote, “You can’t keep Jerry Nadler down.”
Nadler, 71, chairs the House Judiciary Committee and has been a fierce critic of President Donald Trump’s administration, launching a wide-ranging probe in March into the president’s potential power abuses including obstruction of justice and public corruption.
The congressman has also been a strong advocate for the release of special counsel Robert Mueller’s full, unredacted report into the Trump campaign’s relationship with Russia, though he has had no success yet. On Tuesday, he stated that Trump should have faced criminal charges for his alleged behavior detailed in the report.