Nancy Pelosi is once more the most powerful Democrat in the country, assuming the task of leading her caucus through a generational change as the Democratic Party increasingly looks like the people it represents.

The big picture: After becoming the first female speaker of the House in 2007, she became the second one today by reclaiming the gavel.

Why it matters: Pelosi now has the hardest job in D.C.

  • Democrats increasingly describe climate change as the crisis of our time, with younger members in particular demanding it receive special urgency.
  • Democrats are facing an internal debate on how to approach a potential impeachment of President Trump.
  • It will be the House, not the Senate, where the major investigations will play out and the media attention will be focused.

Between the lines: The two sides of the House chamber looked drastically different today, Axios' Caitlin Owens notes.

  • All but 13 House Republicans this Congress are men, and the vast majority are white.
  • While the GOP side of the chamber was filled with dark suits and red or purple ties, the Democratic side was filled with colorful attire and people of varying racial and ethnic backgrounds.

This Congress also features a string of "firsts"...

  • First Muslim women: Reps. Rashida Tlaib (D-Mich.) and Ilhan Omar (D-Minn.)
  • First Native American women: Reps. Sharice Davids (D-Kan.) and Deb Haaland (D-N.M.)
  • Youngest woman: 29-year-old Alexandria Ocasio-Cortez (D-N.Y.)

What's next: Democrats in the House plan to pass legislation to end the partial shutdown, though it likely won't get far in the Senate.

Go deeper: Today's historic moments, via Axios' Stef Kight

Go deeper

Twitter launches warnings on election misinformation and delays

Photo courtesy of Twitter.

Twitter will start pinning notices to the top of all U.S. Twitter users’ timelines warning them that results in next week’s election may be delayed and that they may encounter misinformation on mail-in voting.

Why it matters: Delayed election results are expected across many states that are handling unprecedented amounts of absentee and mailed ballots, which President Trump has baselessly called "very dangerous" and "corrupt."

Miriam Kramer, author of Space
13 mins ago - Science

NASA confirms water exists on sunny parts of the Moon

Photo: NASA/JPL/USGS

Water on the Moon might be more easily accessible than previously thought, opening up new possible avenues for future human exploration, according to a new study.

Why it matters: NASA is aiming to send people back to the Moon as part of its Artemis program by 2024, with plans to eventually create a sustainable presence on the lunar surface. That sustainability relies on mining the moon for its resources, like water.

Updated 42 mins ago - Politics & Policy

Pence no longer expected at Amy Coney Barrett's final confirmation vote

Photo: Ben Hasty/MediaNews Group/Reading Eagle via Getty Images

Vice President Mike Pence no longer plans to attend the Senate's final confirmation vote for Judge Amy Coney Barrett on Monday, following Senate Democrats' claims that his presence after possible exposure to the coronavirus would be a "violation of common decency," a Pence aide confirmed to CNN and Politico on Monday.

Driving the news: Five of Pence's aides were recently diagnosed with COVID-19, including his chief of staff, who is currently quarantining. Pence has continued his campaign travel despite his possible exposure, which goes against CDC guidelines.