The January 6 committee held its fourth public hearing on Tuesday, focusing on Donald Trump's pressure campaign on officials in states like Georgia and Arizona, where the 2020 election was close.

Scientists around the world are scurrying to reverse the hands of time. Here's a look at one lab's search for the fountain of youth, where old mice have grown young again.

The 18-year-old suspect in the Buffalo, New York, supermarket shooting that killed 10 people pleaded not guilty to the 25-count indictment against him, his attorney said in court Thursday afternoon.

Covid cases and deaths in the U.S. are, once again, rising at an alarming rate. But despite the stats, many people seem prepared to pretend things are back to normal. MSNBC medical contributor Dr. Uche Blackstock joins Mehdi to discuss recent data an