Photo: Joe Raedle/Getty Images

A new study shows the consistent loss of local newspapers and journalists has contributed to political polarization, AP reports.

The big picture: Fewer local newspapers means people have to turn to national news sources like cable news to understand national politics, according to the research published in the Journal of Communication. People are applying those issues to their own city councils or state legislatures, leaving more local topics to the wayside.

Details: Researchers compared voting data from 66 communities where newspapers have closed in the past two decades to 77 areas where local newspapers continue to operate.

Yes, but: Dwindling journalism on a local level is just one piece of political polarization. Other factors include less voter participation where local offices are decided and increased government spending in communities where investigative journalists have departed.

Go deeper: StoryCorps aims to counter online platforms' "scary" polarization

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Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 9:30 p.m. ET: 30,918,269 — Total deaths: 959,059— Total recoveries: 21,152,312Map.
  2. U.S.: Total confirmed cases as of 9:30p.m. ET: 6,799,044 — Total deaths: 199,474 — Total recoveries: 2,590,671 — Total tests: 95,108,559Map.
  3. Politics: Testing czar on Trump's CDC contradictions: "Everybody is right" Ex-FDA chief: Career scientists won't be "easily cowed" by political vaccine pressure.
  4. Education: What we overlooked in the switch to remote learning.
  5. Health: The dwindling chances of eliminating COVID-19 — 7 states set single-day coronavirus case records last week.
  6. World: England sets £10,000 fine for breaking self-isolation rules — The countries painting their pandemic recoveries green.

Arrest over letter to Trump containing poison ricin

President Trump returning to the White House from Minnesota on Sept. 18. Photo: Win McNamee/Getty Images

A suspect was arrested for allegedly "sending a suspicious letter" after law enforcement agents intercepted an envelope addressed to President Trump containing the poison ricin, the FBI confirmed in an emailed statement to Axios Sunday.

Details: The suspect, a woman, was arrested while trying to enter New York from Canada, law enforcement forces said.

Trump campaign goes all in on Pennsylvania

Trump poster in Scranton, Pennsylvania. Photo: Robert Nickelsberg/Getty Images

The president's campaign is placing more importance on Pennsylvania amid growing concern that his chances of clinching Wisconsin are slipping, Trump campaign sources tell Axios.

Driving the news: Pennsylvania, which has 20 electoral votes, twice Wisconsin's number, actually has been trending higher in recent public and internal polling, a welcome development for the campaign.