In an interview with ABC' "This Week" Sunday, Sen. Bernie Sanders pushed back on the idea that he and Sen. Elizabeth Warren are interchangeable candidates within the 2020 Democratic field, arguing that Warren is a "capitalist through her bones" and he is a democratic socialist.

JON KARL: What do you say to those who say that they would pick her because she's 8 years younger than you, she didn't just have a heart attack, and, look, in the positions you're pretty much the same.
SANDERS: Well look, everybody, every American is going to make his or her own choice about the candidate that they want. Elizabeth Warren has been a friend of mine for some 25 years, and I think she is a very, very good senator. But there are differences between Elizabeth and myself. Elizabeth, I think as you know, has said that she is a capitalist through her bones. I'm not. ... And the reason I am not is because I will not tolerate for one second, the kind of greed and corruption, income and wealth inequality, and so much suffering, that is going on in this country today, which is unnecessary.

Why it matters: Sanders and Warren appeal to a similar progressive base of the Democratic Party. But while Sanders' support seems to have largely hit a plateau, Warren has continued to rise in the polls, overtaking the more moderate Joe Biden in the national RealClearPolitics average of polls last week for the first time this cycle.

Between the lines: In a recent CBS News poll of Democrats in early voting states, 43% said that the 78-year-old Sanders — who recently had a heart attack — is "too old to serve effectively as president." 28% said the same of the 76-year-old Biden, while only 4% said so for the 70-year-old Warren.

Go deeper: Sanders says he felt symptoms for weeks, will release medical records

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 4 p.m. ET: 12,813,864 — Total deaths: 566,790 — Total recoveries — 7,046,535Map.
  2. U.S.: Total confirmed cases as of 4 p.m. ET: 3,286,025 — Total deaths: 135,089 — Total recoveries: 995,576 — Total tested: 39,553,395Map.
  3. States: Florida smashes single-day record for new coronavirus cases with over 15,000 — Miami-Dade mayor says "it won't be long" until county's hospitals reach capacity.
  4. Public health: Ex-FDA chief projects "apex" of South's coronavirus curve in 2-3 weeks — Coronavirus testing czar: Lockdowns in hotspots "should be on the table"
  5. Education: Betsy DeVos says schools that don't reopen shouldn't get federal funds — Pelosi accuses Trump of "messing with the health of our children."

11 GOP congressional nominees support QAnon conspiracy

Lauren Boebert posing in her restaurant in Rifle, Colorado, on April 24. Photo: Emily Kask/AFP

At least 11 Republican congressional nominees have publicly supported or defended the QAnon conspiracy theory movement or some of its tenets — and more aligned with the movement may still find a way onto ballots this year.

Why it matters: Their progress shows how a fringe online forum built on unsubstantiated claims and flagged as a threat by the FBI is seeking a foothold in the U.S. political mainstream.

Lindsey Graham says he will ask Mueller to testify before Senate

Photo: Tasos Katopodis/Getty Images

Senate Judiciary Chairman Lindsey Graham (R-S.C.) tweeted Sunday that he will grant Democrats' request to call former special counsel Robert Mueller to testify before his committee.

The big picture: The announcement comes on the heels of Mueller publishing an op-ed in the Washington Post that defended the Russia investigation and conviction of Roger Stone, whose sentence was commuted by President Trump on Friday.