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Touted as the world's most technologically advanced fast attack submarine, the USS South Dakota is set to join the US Navy fleet amid a growing threat to American undersea dominance from several foreign rivals.

Two new inquiries have been opened into a contract awarded to a small Montana company to restore parts of Puerto Rico's power grid.

In terms of the total number of lost hours of electricity, Puerto Rico and the US Virgin Islands are in the midst of the largest blackout in US history, according to a report from an economic research company.

Lady Gaga and former Vice President Joe Biden are teaming up again to advocate against sexual assault, releasing a PSA as part of the "It's On Us" campaign started by Biden and former President Barack Obama.

The Virginia governor's race has turned into a culture war -- and President Donald Trump has jumped right in.

Uber is rolling out a new feature that allows users to add up to three stops to a trip.

The beginning of Donald Trump's presidency began with a threat from activists to unseat any Democrat, in any position, who crossed party lines or failed to keep a hard line of liberal resistance against the new administration.

President John F. Kennedy's death gave birth to decades of competing theories -- and a mountain of government paperwork.

Former Rep. Patrick Kennedy, a member of the President's commission on opioid addiction, has a message for the Trump administration a day before it is expected to declare a national emergency on the epidemic: "We want medicine, not media."

House Republicans announced a probe into the circumstances surrounding an Obama-era sale of a uranium mining company to a Russian nuclear firm. CNN's Tom Foreman breaks it down.

Donald Trump's go-to non-answer for decades has been the nebulous, noncommittal "we'll see."

The head of a data analytics company linked to the Trump campaign contacted WikiLeaks founder Julian Assange in 2016 regarding thousands of Hillary Clinton's emails kept on a private server while she was secretary of state, according to four sources familiar with the outreach.

President Donald Trump said Wednesday that his administration will release classified government documents about the assassination of President John F. Kennedy on Thursday, the deadline Congress set for making the files public.

Hillary Clinton's presidential campaign and the Democratic National Committee helped fund research that led to the now-infamous dossier of allegations about President Donald Trump and Russia, a source familiar with the matter told CNN.

Soldiers who looked for Army Sgt. Bowe Bergdahl after he deserted described Wednesday the grueling and dangerous search conditions, with one former Navy SEAL breaking down while detailing the firefight in which his K-9 partner was killed.