Rep. Carlos Curbelo, one of 15 millennials running in tonight's primaries. Photo: Bill Clark/CQ Roll Call

Trump-backed candidates, diverse groups of Democrats, and 15 millennials are all competing in tonight's primaries across Arizona, Florida and Oklahoma.

Why it matters: We're seeing a pattern across the country where Democratic candidates offer more diverse, groundbreaking "firsts" in primaries, while Republican candidates are often differentiated by the strength of their loyalty to the president.

Be smart: Of the 15 Trump-endorsed candidates in battleground primaries, 12 have won, only one has lost, one has a primary tonight and the other will have a primary in November.

  • Trump has endorsed Doug Ducey running for Arizona governor; Ron DeSantis running for Florida governor; current Florida Governor Rick Scott who's running for U.S. Senate; incumbent GOP Rep. Ted Yoho in Florida's 3rd district; and incumbent GOP Rep. Matt Gaetz in Florida's 1st district.

Who to watch:

  • Two Democratic candidates for Florida governor would make history if elected. Andrew Gillum would be the state's first African-American governor; Gwen Graham would be the state's first woman to serve as governor.
  • Sean Shaw would be the state's first African-American attorney general.
  • Cedric McMinn could become the state's first openly gay African-American lawmaker if he wins his state legislature race.
  • 15 millennials — defined as 40 and under by the Millennial Action Project, the largest nonpartisan organization of millennial policymakers in the country — are running for the House, and five are Republicans. Of those, six are running in Arizona and eight in Florida. "The average age of Congress reflects the backwards policymaking we’re currently seeing," said Steven Olikara, president and founder of the Millennial Action Project. "It’s more stuck in the past than on the future."

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Americans reflect on Independence Day amid racism reckoning

A Black Lives Matter banner and a United States flag on the facade of the U.S. embassy building in Seoul, South Korea. Photo: Simon Shin/SOPA Images/LightRocket via Getty Images

America's leaders are rethinking how they view Independence Day, as the country reckons with the historic, unequal treatment of people of color during a pandemic which has disproportionately affected nonwhite Americans.

Why it matters: The country’s legacy of racism has come into sharp focus in the weeks of protests following the death of George Floyd while in Minneapolis police custody. From Confederate statues to Mount Rushmore, Americans are reexamining the symbols and traditions they elevate and the history behind them.

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Illustration: Aïda Amer/Axios

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  4. Public health: The states where face coverings are mandatory Fauci says it has been a "very disturbing week" for the spread of the coronavirus in the U.S.
  5. Economy: The economy may recover just quickly enough to kill political interest in more stimulus.
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Washington Redskins to review team name amid public pressure

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The Washington Redskins have announced they will be conducting a review of the team's name after mounting pressure from the public and corporate sponsors.

Why it matters: This review is the first formal step the Redskins are taking since the debate surrounding the name first began. It comes after weeks of discussions between the team and the NFL, the team said.