Photo: Mark Wilson/Getty Images

Sen. Claire McCaskill’s team was targeted with spear phishing attempt from Russia’s intelligence unit around August 2017, according to The Daily Beast. Sen. McCaskill claims the attack wasn't successful, according to her statement on the attempt.

Why it matters: This is the first publicly identified target of the cyber attacks Moscow has launched in the buildup to the 2018 midterms. McCaskill is a vulnerable Democrat running for reelection in Missouri, a state where President Trump beat out Hillary Clinton in 2016 by almost 20 points.

Homeland Security Secretary Kirstjen Nielsen has previously said Russia is not launching attacks at the scale and scope of the 2016 attacks.

  • Microsoft said last week at the Aspen Security Forum that two other campaigns have been targeted like this, although would not specify whether Russia was responsible.

The details: Senate targets received emails that claimed they needed to reset an expired Microsoft Exchange password. By clicking on a link in that email, they were redirected to a site made to look like the Senate’s Active Directory Federation Services (ADFS) login page, individualized based on who clicked.

  • A Virginia judge issued a permanent injunction against the Russian intelligence hackers last August, which allowed Microsoft to take over websites hackers are responsible for that use Microsoft’s trademark.

The big picture: Individual campaigns and lawmakers’ staffing teams are only as safeguarded from falling for these traps as they are trained to avoid spear phishing tricks. The Russians were able to break into the DCCC and DNC through phishing, which allowed them to launch malware to steal passwords.

  • Given that we know Russians have already launched several hacks like these in the past year, campaigns and election officials would do well to be wary of emails with links in them, especially if there are prompts to provide user credentials.

Microsoft declined to comment on the report.

Go deeper: How the Russians hacked in the 2016 elections

Go deeper

Trump's Tucker mind-meld

Photo illustration: Sarah Grillo/Axios. Photo: Roy Rochlin/Getty Images and BRENDAN SMIALOWSKI/AFP via Getty Images

If you want to understand the rhetorical roots of Trump's Independence Day speech at Mount Rushmore, go back and watch Tucker Carlson's monologues for the past six weeks.

Between the lines: Trump — or rather his speechwriter Stephen Miller — framed the president's opposition to the Black Lives Matter protest movement using the same imagery Carlson has been laying out night after night on Fox.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 6 p.m. ET: 11,366,145 — Total deaths: 532,644 — Total recoveries — 6,154,138Map.
  2. U.S.: Total confirmed cases as of 6 p.m. ET: 2,874,396 — Total deaths: 129,870 — Total recoveries: 906,763 — Total tested: 35,512,916Map.
  3. States: Photos of America's pandemic July 4 ICU beds in Arizona hot spot near capacity — Houston mayor warns about hospitals
  4. Public health: U.S. coronavirus infections hit record highs for 3 straight days.
  5. Politics: Former Trump official Tom Bossert says face masks “are not enough”
  6. World: Mexican leaders call for tighter border control as infections rise in U.S.
  7. Sports: Sports return stalked by coronavirus
  8. 1 📽 thing: Drive-in movie theaters are making a comeback.

Bolton's hidden aftershocks

Photo illustration: Sarah Grillo/Axios. Photo: Justin Sullivan/Getty Images

The news media has largely moved on, but foreign government officials remain fixated on John Bolton's memoir, "The Room Where It Happened."

Why it matters: Bolton's detailed inside-the-Oval revelations have raised the blood pressure of allies who were already stressed about President Trump's unreliability.