House Minority Leader Nancy Pelosi, who's likely to become speaker. Photo: Alex Wong/Getty Images

Democrats have officially won control of the House, picking up at least 26 seats. They needed a net gain of 23 seats to win.

Why it matters: House Democrats will have the power to push back against President Trump and investigate his actions. Republicans have been bracing for a slew of investigations they think House Democrats will launch into Trump and those around him. And they'll have the power to introduce articles of impeachment against Trump — if they choose to do it.

What to watch: The list of probable investigations includes everything from Trump's tax returns to his family businesses, his dealings with Russia, and his travel ban and family separation policy.

  • House Minority Leader Nancy Pelosi, who's in line to become speaker, set the tone Tuesday night when she declared that a Democratic House will be "about restoring the Constitution's checks and balances on the Trump administration."
  • House Democrats can't pass their own agenda and expect Trump to sign it, but they can stop much of his congressional agenda in its tracks. And they don't have to give him the money he wants for priorities like the border wall — but he and Senate Republicans could try hardball tactics to force their hand.

The bottom line: Get ready for two years of non-stop fighting between House Democrats, Senate Republicans and Trump — all setting the stage for a brutal presidential election in 2020.

Go deeper

Hunter Biden saga dominates online debate

Data: NewsWhip; Table: Axios Visuals

The mainstream media turned away. But online, President Trump's charges about Hunter Biden were by far the dominant storyline about the final presidential debate, according to exclusive NewsWhip data provided to Axios.

  • Coverage of business dealings by Joe Biden's son — and pre-debate allegations by one of his former business associates, Tony Bobulinski — garnered more than twice as much online activity (likes, comments, shares) as the runner-up.
Bryan Walsh, author of Future
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America's poor health is jeopardizing its future

Illustration: Eniola Odetunde/Axios

From high levels of obesity and opioid addiction to inequities in access to care, America's pre-existing conditions make the country an easy target for COVID-19, as well as future pandemics that could cripple the United States for decades to come.

Why it matters: One of the best ways the country could prepare for future threats — and boost its economy — is to improve Americans' overall health.

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Fauci says if people won't wear masks, maybe it should be mandated

Anthony Fauci. Photo: Graeme Jennings- Pool/Getty Images

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Why it matters: Fauci made the comments the same day the U.S. hit its highest daily COVID-19 case count since the pandemic began.