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Photo: Tom Williams/CQ Roll Call via Getty Images

Rep. Paul Cook (R-Calif.) will retire at the end of his term in 2020 and announce a run for a seat on the San Bernardino County Board of Supervisors, the Los Angeles Times reports.

The big picture: Cook is the 18th Republican overall to retire from the House during this term, but it's worth noting that his district remains distinctly tilted toward the GOP despite Democratic investment in the area. Cook was re-elected with more than 62% of the vote in 2018, and President Trump beat Mitt Romney's performance in the district during the 2016 presidential election.

Go deeper: Rep. Bill Flores is the 5th Texas Republican to announce retirement

Go deeper

Salesforce rolls the dice on Slack

Illustration: Sarah Grillo/Axios

Salesforce's likely acquisition of workplace messaging service Slack — not yet a done deal but widely anticipated to be announced Tuesday afternoon — represents a big gamble for everyone involved.

For Slack, challenged by competition from Microsoft, the bet is that a deeper-pocketed owner like Salesforce, with wide experience selling into large companies, will help the bottom line.

FBI stats show border cities are among the safest

Data: FBI, Kansas Bureau of Investigation; Note: This table includes the eight largest communities on the U.S.-Mexico border and eight other U.S. cities similar in population size and demographics; Chart: Naema Ahmed/Axios

U.S. communities along the Mexico border are among the safest in America, with some border cities holding crime rates well below the national average, FBI statistics show.

Why it matters: The latest crime data collected by the FBI from 2019 contradicts the narrative by President Trump and others that the U.S.-Mexico border is a "lawless" region suffering from violence and mayhem.

Miriam Kramer, author of Space
2 hours ago - Science

The rise of military space powers

Illustration: Aïda Amer/Axios

Nations around the world are shoring up their defensive and offensive capabilities in space — for today's wars and tomorrow's.

Why it matters: Using space as a warfighting domain opens up new avenues for technologically advanced nations to dominate their enemies. But it can also make those countries more vulnerable to attack in novel ways.