Dr. Jay Bhattacharya will direct the N.I.H., and Dr. Martin A. Makary will lead the F.D.A. Both have reputations as medical contrarians.

The nation’s top intelligence officials appeared before a Senate committee, a day after a report emerged that Trump administration officials discussed Yemen strikes in an unclassified group chat.

The mistake amounts to an unprecedented breach of security by some of President Donald Trump’s most senior national security ...

President Donald Trump has come under fire after it emerged on Monday that senior officials in his administration, including ...