Dec 6 (Reuters) - Three people including a suspected shooter were killed and at least seven others were injured on Friday at Naval Air Station Pensacola, a major U.S. Navy base in Florida, authorities said, the second deadly shooting at a U.S. military installation this week.

WASHINGTON--Warning that American democracy is at stake, House of Representatives Speaker Nancy Pelosi directed a House committee on Thursday to draft articles of impeachment against President Donald Trump, a historic step that sets up a fight over whether to oust him from office.

WASHINGTON--U.S. authorities on Thursday took aim at a Russian cybercriminal group known as Evil Corp, indicting its Lamborghini-driving alleged leader and ordering asset freezes against 17 of his associates over a digital crime spree that has netted more than $100 million from companies across the world.

WASHINGTON--Three legal experts told U.S. lawmakers on Wednesday that President Donald Trump's efforts to pressure Ukraine to investigate a political rival amounted to impeachable offenses, in a hearing that laid the groundwork for formal charges to be filed against the president.

NEW YORK--Newark Mayor Ras Baraka's administration has sued New York Mayor Bill de Blasio, accusing the fellow Democrat of dumping his city's population of homeless people on New Jersey's biggest city.

WASHINGTON--U.S. President Donald Trump solicited foreign interference to boost his re-election chances, undermined national security and ordered an "unprecedented" campaign to obstruct Congress, Democrats said on Tuesday in a report that lawmakers will use as the basis of any formal impeachment charges.

WASHINGTON--President Donald Trump's re-election campaign said on Monday it will no longer issue press credentials to reporters working for Bloomberg News, the agency owned by Democratic presidential hopeful Michael Bloomberg.

WASHINGTON--The U.S. Supreme Court's consideration of a major gun rights case could end in a misfire, with the justices on Monday debating whether to dismiss a challenge backed by the powerful National Rifle Association to a New York City handgun ordinance.

COUNCIL BLUFFS, Iowa--Democratic presidential candidate Joe Biden will crisscross Iowa by bus for eight days starting on Saturday, the longest trek of his campaign, to make a personal appeal for support in a critical state where he has lost ground in polls.

WASHINGTON--U.S. President Donald Trump leaves on Monday for a NATO summit in London and he is under pressure from British Prime Minister Boris Johnson to resist the temptation to wade into the British election campaign coming up later in December.

WASHINGTON--The United States will discuss threats posed by China, including the country's dominance of 5G telecommunications networks, when U.S. President Donald Trump meets with allies at a NATO summit in London next week, an official told reporters on Friday.

WASHINGTON--A U.S. congressional panel on Friday gave President Donald Trump one week to say whether his legal counsel intends to introduce evidence and call witnesses in upcoming impeachment proceedings that could lead to formal charges of misconduct within a few weeks.

BAGRAM AIRFIELD, Afghanistan--President Donald Trump made a surprise Thanksgiving visit to U.S. troops in Afghanistan on Thursday and said he believed Taliban insurgents would agree to a ceasefire in America's longest war.

NEW YORK--Two weeks before Efrain Alvarez and his attorneys asked the U.S. Supreme Court to hear their challenge to a New York City regulation that limited where licensed handgun owners could transport their weapons, police officers showed up at his Bronx apartment and took away all his firearms.

LOS ANGELES--Two winter storms blasted the United States on Wednesday, stranding motorists and causing thousands of flight delays as Americans jammed highways and airports to visit family and friends for the Thanksgiving holiday.

PORT NECHES, Texas--Three workers were injured and residents of four towns were told to evacuate after explosions on Wednesday at a Texas petrochemical plant, the latest in a series of chemical plant accidents in the region.

LOS ANGELES--Flames ripped through brush and woodland on hills above the Californian city of Santa Barbara early on Tuesday, forcing some residents to leave their homes, authorities said.

NEW YORK--Democratic presidential hopeful Cory Booker's campaign will mount an all-out effort to boost his anemic poll numbers in a attempt to qualify for the December debate, his campaign manager said in a memo to the U.S. senator's supporters on Tuesday.