Kelsey Stewart World-Herald staff writer
– May 18, 10:00 PM
Participants — wearing minimal clothing — stand in a chamber that looks like an aluminum can and grows colder over two to three minutes using liquid nitrogen. The temperature drops to between negative 200 and 240 degrees. Proponents…
Former Vice President Joe Biden officially launched his presidential campaign in Philadelphia on Saturday, setting targets on President Donald Trump. NBC's Mike Viqueira reports for Sunday TODAY from the White House.