Monday-morning commute chaos as the largest commuter-railroad service in the country is shut down; Americans are now among those impacted…

Attorneys representing President Donald Trump informed a federal judge in a court filing Monday that the president is dropping his…

Dr. Amesh Adalja, senior scholar for Johns Hopkins Center for Health Security, discusses the Ebola outbreak occurring in the Democratic…

Anna Kepner’s father is speaking out for the first time since authorities believe his 18-year-old daughter was killed by her…

Authorities in Austin, Texas, say a group of teenagers with stolen weapons opened fire at more than 20 locations.

ABC News contributor and former Republican congressman John Katko says the Trump administration is "willing to go an extra step"…

ABC News contributor Mick Mulroy says Ukraine’s major innovations in drone technology are pushing the war toward a "long-term stalemate."…

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President Donald Trump says that "the clock is ticking" for Iran and warned that if the Iranian regime doesn’t come…

20/20 Correspondent Ryan Smith analyzed the Becky Sears murder case which unraveled a web a deception and lies between friends and…