Floodwaters are slowly on the rise in areas around the Pearl River. Photo: City of Jackson/Twitter

Mississippi Gov. Tate Reeves (R) has declared a state of emergency as authorities brace for "historic" floods, with days of rain expected, as the Pearl River continues to swell in and around the state capital, Jackson.

What's happening: Evacuations have already begun, and the river isn't expected to crest until Monday. Reeves described the situation as precarious. "We expect water to stay in the area for 2-3 days, with rain throughout the week," he tweeted.

  • Projections indicate Mississippi could experience the "third-worst flood in our state’s history," Reeves said in a Twitter post announcing the emergency declaration on Saturday.

Evacuations: The Department of Wildlife and Fisheries went door-to-door to alert 510 people "in an effort to evacuate the areas," MEMA said Sunday.

  • The Office of Homeland Security assisted in four evacuations in two counties, it added.

The impact: Four injuries have already been reported and 18 counties had submitted damage reports to the Mississippi Emergency Management Agency by Sunday.

Go deeper: Study: Climate change effects apparent in daily global weather data

Editor's note: This story will be updated as it develops.

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 7 p.m. ET: 12,859,834 — Total deaths: 567,123 — Total recoveries — 7,062,085Map.
  2. U.S.: Total confirmed cases as of 7 p.m. ET: 3,297,501— Total deaths: 135,155 — Total recoveries: 1,006,326 — Total tested: 40,282,176Map.
  3. States: Florida smashes single-day record for new coronavirus cases with over 15,000 — NYC reports zero coronavirus deaths for first time since pandemic hit.
  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."

Scoop: How the White House is trying to trap leakers

Illustration: Sarah Grillo/Axios

President Trump's chief of staff, Mark Meadows, has told several White House staffers he's fed specific nuggets of information to suspected leakers to see if they pass them on to reporters — a trap that would confirm his suspicions. "Meadows told me he was doing that," said one former White House official. "I don't know if it ever worked."

Why it matters: This hunt for leakers has put some White House staffers on edge, with multiple officials telling Axios that Meadows has been unusually vocal about his tactics. So far, he's caught only one person, for a minor leak.

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.