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• Iraq War haunts the 2020 vote

The Democratic presidential candidates tangled in Tuesday night's debate over who was best positioned to keep the country safe as they face voters who are increasingly anxious about another conflict in the Middle East after President Donald Trump ordered the targeted killing of Iranian commander Qasem Soleimani.

The top six candidates debated Tuesday night in Iowa, the last chance for them to stand beside their rivals before Iowa voters kick off the nomination fight in 20 days' time.

During the CNN/ Des Moines Register Democratic presidential debate, Sen. Bernie Sanders (D-VT) denied telling Sen. Elizabeth Warren (D-MA) during a private meeting in 2018 that he did not believe a woman could win the presidency.

Former national security adviser Michael Flynn, who federal prosecutors recently said should go to jail for lying to the FBI in the early days of the Trump administration, has asked a judge to allow him to withdraw his guilty plea.

• McConnell sets date for start of Senate trial

More than a dozen elementary school children are being treated after a plane dumped jet fuel over a school playground near Los Angeles.

Billie Eilish's star just keeps on rising.

The texts came from an unfamiliar number. But the man on the other end of the conversation gave the impression that he knew her and could see her.

"I thought a woman could win; he disagreed."

President Donald Trump has often shown his deeply anti-Muslim bigotry and Islamophobia. But just when you think he couldn't make already vulnerable Muslim-Americans — especially our fellow Iranian-Americans — any more vulnerable than we already are, Trump one-ups himself.

Europe is taking the lead in forcing Iran towards a diplomatic de-escalation, and it is doing so using President Donald Trump's tactics.

The final debate before the Iowa caucuses brings new challenges for the Democratic presidential field.

The lawyer for Lev Parnas, one of Rudy Giuliani's indicted associates, tweeted out a video of Parnas posing with Donald Trump and some of his associates in an apparent attempt to troll the President. CNN's Kara Scannell has the latest.

• Analysis: 8 words that spell trouble for Sanders

Elon Musk is getting close to the first big payday from his massive stock package.

Almost a month after Harley Dilly disappeared on his way to school, police believe the Ohio boy's body has been found in a chimney.

Former Pope Benedict XVI will remove his name as co-author of a book seen as undercutting his successor Pope Francis, according to a statement from the other author of the book, Cardinal Robert Sarah.

After Real Betis' thrilling 4-3 victory over Barcelona in November 2018, midfielder Sergio Busquets gifted then-Betis manager Quique Setien his shirt with a personal message written on the back.

President Donald Trump plans to divert an additional $7.2 billion in Pentagon funding for border wall construction in 2020, five times what Congress authorized, The Washington Post reports.

Delta Air Lines is the only major US carrier without a 737 Max in its fleet. And that just helped it to post very strong fourth quarter and full-year profits.

Some trees can live for centuries or even millennia but the secrets behind their long life spans have eluded scientists.

Tens of thousands of people have been evacuated from a danger zone around an erupting volcano in the Philippines as it continues to spew plumes of ash and generate lava fountains.

Several people have been arrested in Iran over the downing of a Ukrainian passenger plane as Iranian President Hassan Rouhani warned that those responsible would be punished.

Practice for the Australian Open was temporarily suspended Tuesday due to the poor air quality in Melbourne with smoke from fires in Eastern Victoria and New South Wales affecting most of Victoria.

France, Germany and the UK have triggered the dispute mechanism of the Iran nuclear deal after Tehran stepped back from some of its commitments under the landmark agreement.

• Who will pay for Harry and Meghan's security? Canada says discussions are underway

It's finally here.

• Vegan sausages and clever marketing have helped this low-cost chain take over Britain

At least six people have died and 16 others have been injured after a massive sinkhole swallowed up a bus picking up passengers in northwestern China, the latest in a recent string of deadly road collapses in the country.

When Tesla's Cybertruck was unveiled by Elon Musk late last year, the futuristic vehicle was compared to something out of an apocalyptic sci-fi movie.

A US citizen who once begged for President Donald Trump's help has died after more than six years in an Egyptian prison.

The imminent final act of America's impeachment ordeal will be played for far higher political stakes than might be expected given the all-but-guaranteed acquittal of President Donald Trump in his trial in the Republican-led Senate.

Almost a third of the Earth will need to be protected by 2030 and pollution cut by half to save our remaining wildlife, as we enter the planet's sixth era of mass extinction, according to a United Nations agency.

Before the 2019 season started, members of the LSU football team, knowing the national championship game would be in New Orleans, about 80 miles away from their campus, made a resolution: They would not be denied.

South Korean President Moon Jae-in believes North Korea remains open to dialogue with the United States, despite comments over the weekend from a top official in Pyongyang suggesting his country had been "deceived by the US" in nuclear negotiations.

It's official, Akon has his own city in Senegal.

Britain begins the new decade on the cusp of leaving the European Union and with its Royal Family in crisis. And yet, for the second consecutive January, many people are talking about a vegan pastry.

Scientists have created the world's first living, self-healing robots using stem cells from frogs.

Major League Baseball has suspended Houston Astros manager AJ Hinch and general manager Jeff Luhnow without pay for one season after an investigation of allegations the team used a hidden camera to steal signs during their 2017 championship season, Commissioner Robert D. Manfred Jr., announced Monday.

Bernie Sanders and Elizabeth Warren have for more than a year observed a non-aggression pact designed to keep the Democratic left united as it seeks to topple the party's leading moderate presidential candidates.

State Department officials involved in US embassy security were not made aware of imminent threats to four specific US embassies, two State Department officials tell CNN, further undermining President Donald Trump's claims that the top Iranian general he ordered killed earlier this month posed an imminent threat to the diplomatic outposts.