Bobby Allyn

Then-national security adviser John Bolton was distressed about Rudy Giuliani. Trump's personal lawyer had bypassed established procedure for representing the White House with a foreign leader and had launched a secret back channel of communication with Ukraine. The shadowy moves were so potentially combustible that Bolton in private meetings earlier this year called Giuliani "a hand grenade who is going to blow everybody up."

Updated at 10:02 a.m. ET

House investigators are hearing testimony Monday from Fiona Hill, the former White House adviser on Russia, who is appearing in private and faces questions as part of Democrats' impeachment inquiry into President Donald Trump.

A white police officer fired through the window of a black woman's home early Saturday and killed her after responding to a call that a neighbor placed about an open front door, authorities in Fort Worth, Texas, say.

Around 2:25 a.m., officers responded to an "open structure call" made by a neighbor to the police department's nonemergency number. Inside the home, Atatiana Jefferson, 28, and her 8-year-old nephew were playing video games.

A public official in Arizona has been arrested in connection with charges that he ran a multimillion-dollar scheme in which he smuggled pregnant women from the Marshall Islands to profit from their newborn babies. Authorities say Maricopa County Assessor Paul Petersen's fraudulent adoption enterprise left a trail of forged documents and violated U.S. and international laws.

Three men from Louisiana are suspected of killing Joshua Brown in a drug deal that turned deadly, Dallas police said on Tuesday. Police have arrested one of the men and are searching for the other two.

As President Trump defends his decision to pull away some U.S. troops from Syria's border with Turkey, the president's former envoy for the fight against the so-called Islamic State is raising alarms about how potentially destabilizing the move can be for the region.

Updated at 4:23 p.m. ET

Iraqi authorities say at least seven more people were killed in clashes between protesters and police in eastern Baghdad on Sunday, bringing the death toll from nearly a week of anti-government rallies throughout Iraq to more than 100 with thousands of others injured.

Protesters, who took to the streets on Tuesday frustrated over joblessness and corruption, have been met with live ammunition from security forces attempting to break up the mass demonstrations that have convulsed Baghdad and parts of southern Iraq for days.

The legal team representing the whistleblower whose complaint sparked an impeachment inquiry against President Trump now says it is representing a second whistleblower described as an intelligence official with firsthand knowledge of the allegations against the president.

Updated at 3:50 p.m. ET

MGM Resorts International has agreed to pay up to $800 million to settle thousands of liability claims stemming from the 2017 mass shooting in Las Vegas, lawyers announced Thursday, almost exactly two years after the massacre.

On Oct. 1, 2017, a gunman on the 32nd floor of the MGM-owned Mandalay Bay resort opened fire on a crowd of people at a country music festival, killing 58 and injuring hundreds.

Updated at 9:26 p.m. ET

Amber Guyger, a former Dallas police officer who killed her unarmed black neighbor after stepping into his apartment and mistaking it for her own, has been sentenced to 10 years in state prison by the same jury that convicted her of murder.

"Your sentence will begin today," Judge Tammy Kemp told Guyger.

Updated at 7:30 p.m. ET

A judge has ruled that a Philadelphia nonprofit group's plan to open the first site in the U.S. where people can use illegal opioids under medical supervision does not violate federal drug laws, delivering a major setback to Justice Department lawyers who launched a legal challenge to block the facility.

Updated at 6:22 p.m. ET

A Dallas jury has found former police Officer Amber Guyger guilty of murder for fatally shooting a neighbor who lived in the apartment directly above hers last year. She had testified that she entered Botham Jean's unit after a long day at work, thinking it was her own home and that he was an intruder.

Updated at 11:10 p.m. ET

Chaotic scenes overtook the streets of Hong Kong on Sunday, as protesters and police engaged in running street battles in a march billed as a rally against global totalitarianism. It also launched the 17th week of pro-democracy demonstrations aimed at China's tightening grip on the territory.

Updated 8:38 p.m. ET

President Trump has ordered that the number of refugees allowed to resettle in the U.S. in the coming year be cut nearly in half to 18,000, down from the administration's previous refugee ceiling of 30,000.

The limit represents the lowest number of refugees seeking protection from violence or political persecution allowed into the country since the modern refugee program was established in 1980.

The "OK" hand gesture, commonly seen as a way of indicating that all is well, has now been classified as something else: a symbol of hate.

On Thursday, the Anti-Defamation League, a Jewish civil rights organization, added 36 symbols to its "Hate on Display" database including the index finger-to-thumb sign that in some corners of the Internet has become associated with white supremacy and the far right.

Federal transportation investigators say Boeing should reevaluate the way it prepares pilots to respond to emergencies and faulted the aircraft maker for making assumptions about the design of cockpit systems in the first safety analysis released since two crashes of 737 Max planes killed 346 people.

Israel's president on Wednesday tapped Prime Minister Benjamin Netanyahu to attempt to form a new government. The move could give Netanyahu up to six weeks to haggle for political allies.

Updated at 1:01 p.m. ET

Juul Labs has agreed to stop advertising its popular e-cigarettes in the United States and announced that its chief executive officer is stepping down as state and federal regulators examine hundreds of cases of people who are sick from what appears to be a vaping-related lung disease.

New Mexico has announced a plan to make public college and university free for all residents in the state, a proposal considered one of the most ambitious attempts to make higher education more accessible.

Updated 1:35 p.m. ET

A Pennsylvania state senator has stepped down following his arrest on charges of possession of child pornography.

Sen. Mike Folmer submitted his letter of resignation on Wednesday to Republican colleagues in Harrisburg, according to leadership in the state chamber.

Updated at 7:17 p.m. ET

The Department of Justice has filed a lawsuit against Edward Snowden alleging that his newly released memoir, Permanent Record, violates nondisclosure agreements he signed with the federal government. Justice Department lawyers say the U.S. is entitled to all of Snowden's book profits.

The civil lawsuit filed Tuesday in Virginia names the former National Security Agency contractor and his New York-based publisher, Macmillan.

Veteran journalist Cokie Roberts, who joined an upstart NPR in 1978 and left an indelible imprint on the growing network with her coverage of Washington politics before later going to ABC News, has died. She was 75.

Roberts died Tuesday because of complications from breast cancer, according to a family statement.

Purdue Pharma, the maker of OxyContin, filed for Chapter 11 bankruptcy protection Sunday night, just days after striking a settlement with more than 2,000 local governments over its alleged role in creating and sustaining the deadly opioid crisis.