Photos: Brett Carlsen/AFP via Getty Images; Timothy A. Clary/AFP via Getty Images; Sean Rayford/Getty Images

A group of top national polls released this week show Bernie Sanders in control of the 2020 Democratic race ahead of Wednesday's debate in Las Vegas.

The state of play: Joe Biden, who has been at the top of the polls for months, plunged after lackluster performances in Iowa and New Hampshire — allowing Sanders to surge ahead as billionaire Mike Bloomberg has cut into the former vice president's lead among moderate voters.

The results

Washington Post-ABC News:

  • Sanders: 32% (up 9% since January)
  • Biden: 16% (-16%)
  • Bloomberg: 14% (+6%)
  • Warren: 12% (even)
  • Buttigieg: 8% (+8%)
  • Klobuchar: 7% (+4%)

NBC News-Wall Street Journal:

  • Sanders: 27% (even since January)
  • Biden: 15% (-11%)
  • Bloomberg: 14% (+5%)
  • Warren: 14% (-1%)
  • Buttigieg: 13% (+6%)
  • Klobuchar: 7% (+2%)

NPR-PBS NewsHour-Marist:

  • Sanders: 31% (up 9% since December)
  • Bloomberg: 19% (+15%)
  • Biden: 15% (-9%)
  • Elizabeth Warren: 12% (-5%)
  • Amy Klobuchar: 9% (+5%)
  • Pete Buttigieg: 8% (-5%)

What to watch: The Nevada debate marks the first time Bloomberg has qualified and will be on stage with the rest of the contenders.

  • His rivals plan to curb his rise by painting him as a Democratic version of PresidentTrump — an egomaniac New York billionaire who's stained by sexism and racial slights, and hell-bent on buying power and puppeteering mass media, write Axios' Jim VandeHei and Mike Allen.

Worth noting: Because the primary process is conducted on a state-by-state basis, national polls often have their limitations, but these results from three major pollsters crystallize the trend lines currently at play in the race.

Go deeper

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Photo: Alex Wong/Getty Images

President Trump will move within days to nominate his third Supreme Court justice in just three-plus short years — and shape the court for literally decades to come, top Republican sources tell Axios.

Driving the news: Senate Majority Leader Mitch McConnell and Senate Republicans are ready to move to confirm Trump's nominee before Election Day, just 46 days away, setting up one of the most consequential periods of our lifetimes, the sources say.

What they're saying: Ruth Bader Ginsburg was a "tireless and resolute champion of justice"

Ruth Bader Ginsburg speaking in February. Photo: Sarah Silbiger/Getty Images

Democratic and Republican lawmakers along with other leading figures paid tribute to Supreme Court Justice Ruth Bader Ginsburg, who died on Friday night at age 87.

What they're saying: “Our Nation has lost a jurist of historic stature," Chief Justice John Roberts said. "We at the Supreme Court have lost a cherished colleague. Today we mourn, but with confidence that future generations will remember Ruth Bader Ginsburg as we knew her — a tireless and resolute champion of justice.”

Supreme Court Justice Ruth Bader Ginsburg dies at 87

Ruth Bader Ginsburg. Photo: Tom Brenner/Getty Images

Justice Ruth Bader Ginsburg has died of metastatic pancreatic cancer at age 87, the Supreme Court announced Friday evening.

The big picture: Ginsburg had suffered from serious health issues over the past few years. Her death sets up a fight over filling a Supreme Court seat with less than 50 days until the election.