Camila Domonoske

Updated 3:40 p.m. ET

Senior lawmakers on the House Oversight Committee say Michael Flynn, the former national security adviser, appears to have violated the law when he took payments from groups associated with foreign governments.

Chairman Jason Chaffetz, R-Utah, and ranking member Elijah Cummings, D-Md., spoke at a news conference Tuesday, after they received a classified briefing.

"I see no data to support the notion that Gen. Flynn complied with the law," Chaffetz said.

Robert Siegel, whose career with NPR has spanned more than four decades, will be stepping down as co-host of NPR's All Things Considered next year.

One of the most distinctive voices on NPR's airwaves, Siegel will be leaving the host's chair in January 2018. He has hosted the show for 30 years.

This Tax Day, former Microsoft CEO Steve Ballmer launched a new tool designed to make government spending and revenue more accessible to the average citizen.

The website — USAFacts.org — has been slow and buggy for users on Tuesday, apparently due to the level of traffic. It offers interactive graphics showing data on revenue, spending, demographics and program missions.

Syrian President Bashar Assad continues to deny responsibility for a chemical attack in the town of Khan Shaykhun, claiming the attack was "100 percent ... fabrication" and video evidence showing choking victims is "fake."

He told Agence France-Presse this week that he wasn't even confident the dead children shown on video were "dead at all."

David Dao, the 69-year-old Kentucky doctor dragged off a United Express flight on Sunday night, suffered a concussion and broken nose in the incident and lost two teeth, his attorney said Thursday.

Dao will need reconstructive surgery, lawyer Thomas Demetrio announced at a news conference in Chicago.

He said there will "probably" be a lawsuit over the airline's actions.

Updated at 6:11 p.m. ET

Passengers on a United Express flight from Chicago to Louisville, Ky., were horrified when a man was forcibly removed — violently wrenched from his seat and physically dragged down the aisle — apparently to clear a seat for airline staff. Videos of the scene have prompted calls to boycott United Airlines.

On Twitter, a representative of the United said the flight in question was "overbooked" and that "one customer refused to leave."

Updated at 4:40 a.m. ET Saturday

A suspect in Friday's truck attack in Stockholm has been arrested, according to a Swedish prosecutor.

Police in Sweden say the man they have arrested is "likely" the driver of a truck which drove into pedestrians on a major shopping and tourist street in Stockholm, causing multiple injuries and fatalities.

Twitter is suing the Department of Homeland Security after the agency demanded to know the identity of the person behind the "@ALT_uscis" or "Alt Immigration" Twitter account, one of several "rogue" accounts ostensibly created by anonymous employees of the federal government.

A federal appeals court has rejected a lawsuit against Mississippi over the use of the Confederate battle flag in the state flag.

A black Mississippi resident said that the use of the Confederate symbol amounted to state-sanctioned racial discrimination. But the 5th Circuit Court of Appeals ruled that any emotional harm caused by the flag is irrelevant, legally speaking, and doesn't give him grounds to sue.

Authorities in New York have charged a white supremacist from Baltimore with terrorism over the murder of a black man last week.

Police say 28-year-old James Jackson of Baltimore traveled to New York City specifically to kill black men.

It was a plan he carried out on Monday, stabbing 66-year-old Timothy Caughman to death on a public street corner, police say.

The Associated Press reports that Caughman was remembered "as a gentleman and a good neighbor."

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