Tom Steyer. Photo: Scott Olson/Getty Images

Tom Steyer's Iowa political director, Pat Murphy, has resigned after allegedly offering campaign contributions to Iowa politicians if they agreed to endorse the billionaire candidate, ABC News reports. Murphy has denied the claims.

Why it matters: Undisclosed payments in exchange for endorsements would violate campaign finance laws. There is no record of any Iowans accepting funds from Steyer’s campaign in such a deal, and his press secretary has denied knowledge of the offer.

Flashback: One of Steyer's South Carolina aides resigned this week after an internal investigation into allegations that he stole volunteer data from the campaign of Democratic presidential rival Kamala Harris.

The backdrop: Since Steyer launched his long-shot campaign, he's been accused of trying to buy his way into the White House. He vowed to put $100 million of his own fortune toward his campaign.

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Editor's note: This story has been updated to clarify that Pat Murphy was the Steyer campaign's Iowa political director, rather than the political director at large.

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N.Y., N.J. and Conn. to require travelers from 35 states to quarantine

Photo: Spencer Platt/Getty Images

Travelers from 35 states are now required to quarantine for 14 days when traveling to New York, New Jersey and Connecticut, per New York state's health department.

What's new: New York City will set up bridge and tunnel checkpoints to enforce the quarantine order, Mayor Bill de Blasio said Wednesday, per the Wall Street Journal.

When U.S. politicians exploit foreign disinformation

Illustration: Aïda Amer/Axios

U.S. political actors will keep weaponizing the impact of widespread foreign disinformation campaigns on American elections, making these operations that much more effective and attractive to Russia, China, Iran or other countries backing them.

Why it matters: Hostile powers’ disinformation campaigns aim to destabilize the U.S., and each time a domestic politician embraces them, it demonstrates that they work.

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Samsung debuts Note 20, new foldable smartphone

The Galaxy Note 20 Ultra. Photo: Samsung

Samsung unveiled its crop of new mobile devices Wednesday, including two versions of the Note 20 smartphone, an updated foldable device, two tablets and a watch.

Why it matters: The new devices aim to give Samsung an early start in the second half of the year, with products aimed at parents buying fresh gear for the back-to-(home)school season.