Watchdog Group Requests Testimony From Huma Abedin, Cheryl Mills in Clinton Email Case

May seek deposition from Clinton in the future

On This Day in History: March 16, 2008

China, Russia Planning Space Attacks on U.S. Satellites

Critical space infrastructure faces crippling missile strikes, small satellites, lasers

Trump Addresses Supporters After Wins in Florida, Illinois and North Carolina

Kasich Speaks to Supporters After Ohio Win

Trump Praises Campaign Manager Accused of Hurting Reporter: 'Good Job, Corey'

Marco Rubio Suspends Campaign After Losing Florida to Trump

Hillary Clinton Wins Four States, Including Illinois and Ohio

John Kasich Wins Ohio

Donald Trump prevails in winner-take-all Florida, Marco Rubio suspends campaign

Hillary Clinton's Four Days of Gaffes