After President Donald Trump suggested over the weekend that China might have pulled off the recent cyberattack on U.S. agencies, outgoing U.S. Attorney General William Barr on Monday doubled down on what other cybersecurity officials are saying: “It certainly appears to be the Russians.” Barr echoed a similar statement U.S. Secretary of State Mike Pompeo made on Friday.

About 5.9 million doses of the newly authorized Moderna shot against COVID-19 shipped to healthcare facilities across the United States on Monday. The vaccine wasn’t the only thing on the move: More than 1 million people per day passed through U.S. airport security checkpoints over the weekend. The U.S. Centers for Disease Control and Prevention has advised Americans that “postponing travel and staying home is the best way to protect yourself and others from COVID-19.”

In a 6-3 ruling on Friday, the Supreme Court left the door open for the Trump administration to adjust the census data it submits to Congress to exclude estimated numbers of illegal immigrants. The decision does not demand Congress use that information when it apportions each state’s House delegation. The justices said they cannot rule on the fairness of the data until they see exactly how the White House put it together.

Congress expects to work over the weekend on a nearly $1 trillion pandemic economic relief bill. Lawmakers will have to pass another continuing resolution to keep the government from shutting down Friday night, but they hope to have a stimulus deal and an overall federal budget passed by Christmas.

The Republican chairman of the Senate Homeland Security and Government Affairs Committee said at a hearing on Wednesday he believes President-elect Joe Biden won the election, but Congress must still address Americans’ concerns about voter fraud. “When we have such a large percentage of the American population in both the 2016 and 2020 elections not accepting the results as legitimate, that’s a problem,” said Sen. Ron Johnson, R-Wis. “We need to fix that.” Democrats on the committee said the hearing only elevated groundless claims of voter fraud.

Former South Bend, Ind., Mayor Pete Buttigieg once made a formidable opponent to President-elect Joe Biden, beating him in February’s Iowa caucuses. Now Biden has reportedly tapped him to serve as the cabinet secretary in charge of the nation’s highway system, planes, trains, and mass transit. Buttigieg is a prominent rising Democrat from red state Indiana who stood out in the primaries for frequently referencing his religious views and for being the first openly gay leading presidential candidate. He also served for seven months as a U.S. military intelligence officer in Afghanistan.

Electors from each state gathered at their respective capitols on Monday to cast votes for president. Despite a flurry of failed lawsuits and protests claiming rampant voter fraud, the Electoral College affirmed Joe Biden’s win when California awarded him its 55 votes, giving the president-elect 302 and pushing him past the 270 needed to win. Hawaii gave him four more votes later on Monday.