The Associated Press projects Joe Biden has been elected the 46th president of the United States, ousting President Trump after a single term marked by impeachment, constant battles, a disastrous response to the deadly coronavirus pandemic and an unexpectedly close election.

Kamala Harris will join him as the first woman and first person of color to be elected vice president — a historic breakthrough largely overshadowed by the turmoil surrounding the election. Biden is expected to address the nation at 8 pm Eastern.

Joe Biden has won the 270 electoral votes he needs to defeat President Trump, according to Associated Press projections, with his win in Pennsylvania putting him over the top.

The latest: The projected Pennsylvania victory — on top of Wisconsin, Michigan and now Nevada — makes Biden the president-elect even as the Trump campaign fights him with lawsuits and recounts.

Joe Biden plans Monday to name a 12-member task force to combat and contain the spread of the coronavirus, sources tell Axios.

Why it matters: By announcing a COVID task force even before unveiling his senior White House staff or a single cabinet appointment, Biden is signaling that addressing the coronavirus will be the immediate priority for his transition, and then his potential administration.

If President Trump is on his way out the door, he'll have almost limitless power to reward his friends, settle scores and stack boards and commissions with his allies during his final days in office.

Why it matters: After defeat, there are no constraints on ordinary presidential powers between the election and the inauguration. Trump has shown a willingness to stretch the norms of what has been done and what can be done. So expect him to go out the way he came in.

This is Axios Special Election 2020 coverage. Joe Biden wins the presidential election, AP projects, after winning Pennsylvania Saturday morning. We talk to Axios reporters Hans Nichols and Jonathan Swan to find out what’s next for both Biden and Donald Trump.

1. Politics: Biden announcing COVID task force on Monday — Reports: Trump chief of staffMark Meadows tests positive for COVID-19.
2. Health: Counties with giant caseloads went for Trump.
3. Cities: Defense Department sends medical teams to El Paso as COVID-19 cases surge.
4. Economics: Fed chair says economy will see "stronger recovery" with stimulus.
5. Sports: NBA's Toronto Raptors weigh temporary stay in U.S.
6. World: Designing digital immunity certificates for COVID-19.

White House chief of staff Mark Meadows has tested positive for the coronavirus, Bloomberg's Jennifer Jacobs first reported Friday night.

The state of play: Meadows traveled with the president in the run-up to Election Day and was most recently seen in public Wednesday morning, per AP. The diagnosis comes roughly a month after President Trump, members of the Trump family and others close to the president tested positive for COVID-19.

Joe Biden appears close to an electoral win that will likely be narrower than election forecasts projected, and the initial sense that he underperformed expectations, which were themselves off base, could color his election and perhaps his presidency.

The big picture: We can't help but judge events based on whether they exceed or fall short of our expectations for them — but those expectations often aren't grounded in reality.

Joe Biden said late Friday that while "we don't have a final declaration of victory yet," vote counts across the U.S. "tell us a clear and convincing story: We're going to win this race."

Why it matters: Biden is closing in on the 270 electoral votes needed to defeat President Trump, according to AP projections, with the critical battleground states of Michigan and Wisconsin now called for the former vice president.

Sen. David Perdue (R-Ga.) will go to a Jan. 5 runoff contest after failing to win 50% of the popular vote in the race against Democrat Jon Ossoff, AP reports.

Why it matters: No winner has been declared in either of Georgia's two Senate battles, which means we likely won’t know which party will hold the Senate majority until 2021.