Photo: Mark Wilson/Getty Images

A number of Republican Party officials and Trump advisers are studying a trend that has received scant national media coverage but could pose a jarring dilemma for the president: Will Trump have to choose between releasing his tax returns and having his name on the ballot in some blue states for the 2020 election?

Driving the news: Illinois' state senate recently passed a bill that would require people running for president or vice president to disclose their tax returns from the past five years.

The big picture: Illinois is not alone. Per the National Conference of State Legislatures...

"As of February 20, 2017 legislators in 18 states (Arizona, California, Connecticut, Hawaii, Illinois, Iowa, Kansas, Maryland, Minnesota, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Tennessee, Vermont and Virginia) have introduced bills" to require "future presidential candidates to disclose income tax returns in order to be placed on the general election ballot."

The bottom line: None of these bills have been signed into law (yet). But it seems possible — even likely — that at least one blue state might put it in place. And that potential scenario is giving Trump allies pause.

Our thought bubble: Given Trump's determination so far to keep his taxes hidden, it's not crazy to imagine that he'd rather not be on the ballot in a state he's certain to lose than turn over his taxes.

  • Keep your eye on this — as Republican Party officials will surely do.

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Bryan Walsh, author of Future
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Entomologists in Washington state on Thursday discovered the first Asian giant hornet nest in the U.S.

Why it matters: You may know this insect species by its nom de guerre: "the murder hornet." While the threat they pose to humans has been overstated, the invading hornets could decimate local honeybee populations if they establish themselves.

Biden is highest-spending political candidate on TV ads

Joe Biden. Photo: Sean Rayford/Getty Images

After spending an additional $45.2 million on political ads this week, former Vice President Joe Biden has become the highest-spending political candidate on TV ads ever, according to data from Advertising Analytics.

By the numbers: In total, the Biden campaign has spent $582.7 million on TV ads between 2019 and 2020, officially surpassing Michael Bloomberg's record spend of roughly $582 million. Biden's spend includes his primary and general election advertising.