Roberta Rampton

Updated August 5, 2021 at 7:08 PM ET

Major automakers and the Biden administration are mapping out a route toward a future where Americans drive a lot more electric vehicles.

President Biden, standing before a display of electric trucks and SUVs and surrounded by union officials and auto executives, signed an executive order Thursday setting a target that half of all new vehicles sold in the U.S. in 2030 be zero-emission cars, which would include plug-in hybrids.

Updated July 9, 2021 at 2:51 PM ET

President Biden unveiled a new plan on Friday taking aim at powerful industries where a handful of players have so much market clout that they can drive up prices, depress wages and make it hard for small companies to break in.

"We know we've got a problem, a major problem. We've also got an incredible opportunity," Biden said in remarks before signing the order.

President Biden plans to sign an executive order on Friday that would increase food stamp benefits to help people going hungry amid the financial downturn caused by the COVID-19 pandemic, his top economic adviser, Brian Deese, told reporters.

Biden has already proposed a $1.9 trillion relief package to Congress that includes direct payments and other types of aid for people who have lost their jobs because of the pandemic. In the meantime, he is directing his administration to take steps to tweak programs to try to provide some assistance.

Updated at 10:10 a.m. ET

Unwilling to admit defeat but with his time in office at its end, President Trump left the White House early Wednesday, skipping the Inauguration Day ceremony that generations of outgoing presidents have attended — a symbolic peaceful transfer of power that had been made all but impossible by his actions after losing the election to Joe Biden.

The team planning President-elect Joe Biden's Inauguration Day festivities is urging Americans to stay at home and celebrate the tradition where it is safe, given the risks of traveling and gathering during the coronavirus pandemic.

Biden's presidential inaugural committee named a chief medical adviser for the day, Dr. David Kessler — the former Food and Drug Administration commissioner, who was an adviser to the Biden campaign.

Two weeks ago, President Trump entered the White House briefing room and announced an aggressive plan to slow the spread of the coronavirus.

Stay home for 15 days, he told Americans. Avoid groups of more than 10 people. "If everyone makes this change, or these critical changes, and sacrifices now, we will rally together as one nation and we will defeat the virus," he said.

Updated at 8:03 p.m. ET

The White House disclosed its first case of the coronavirus on Friday night: a person who works in the office of Vice President Pence.

"Neither President Trump nor Vice President Pence had close contact with the individual," Pence spokeswoman Katie Miller said in a statement. She declined to give further details.

"Further contact tracing is being conducted in accordance with CDC guidelines," Miller said.

Updated at 4:14 p.m. ET

President Trump announced new coronavirus guidelines for at least the next 15 days, including that Americans should avoid groups of more than 10 people.

In a briefing at the White House on Monday, he also urged people to avoid discretionary travel and going out to bars, restaurants and food courts. He recommended that schools close.

The stricter guidelines marked a shift for the president, who has repeatedly stated that the virus is under control.

"Whatever it takes, we're doing," Trump said.

Updated at 8:00 p.m. ET

States hit hardest by the spread of coronavirus will see drive-through and walk-through testing sites set up this week, the White House said on Sunday, a shift that will provide more information about how widely the virus has spread across the country.

The sites each will be able to screen 2,000 to 4,000 people per day, with priority given to health care workers, first responders and people age 65 and older with respiratory symptoms and fevers above 99.6 degrees.

President Trump on Thursday defended new restrictions on travelers from most parts of Europe, a decision that angered allies and trading partners, was questioned by some public health experts and sent stock markets reeling.