Photo: eresa Kroeger/Getty Images for World Food Program USA

Republican Sens. Chuck Grassley (Iowa) and Ron Johnson (Wis.) announced a review on Wednesday of "potential conflicts of interest posed by the business activities of Hunter Biden and his associates during the Obama administration."

Why it matters: The announcement came roughly one hour after the Senate voted to acquit President Trump on both articles of impeachment. Trump's request for Ukraine to investigate Hunter and Joe Biden over unsubstantiated corruption claims is ultimately what sparked his impeachment.

Details: The review was announced in a letter to Secret Service Director James Murray. It states the Finance Committee and Homeland Security and Governmental Affairs Committee will look into Hunter Biden's business activities in Ukraine and China.

  • "We write to request information about whether Hunter Biden used government-sponsored travel to help conduct private business, to include his work for Rosemont Seneca and related entities in China and Ukraine," Grassley and Johnson write.
  • The senators also ask for information on "the protective detail that Hunter Biden received while his father was Vice President," and a "list of all dates and locations of travel, international and domestic, for Hunter Biden."

A spokesperson for Democratic Sen. Ron Wyden said Thursday that the Treasury Department has complied with a request from Republican senators seeking documents on Hunter Biden’s business relationship with Burisma, the Ukrainian gas company at the center of President Trump's impeachment, the New York Times reports.

  • "Applying a blatant double standard, Trump administration agencies like the Treasury Department are rapidly complying with Senate Republican requests — no subpoenas necessary — and producing ‘evidence’ of questionable origin," Wyden spokeswoman Ashley Schapitl said.
  • “The administration told House Democrats to go pound sand when their oversight authority was mandatory while voluntarily cooperating with the Senate Republicans’ sideshow at lightning speed.”

Read the letter.

Go deeper: Hunter Biden defends his Ukraine work

Go deeper

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Photo: Saul Loeb/AFP via Getty Images

The Supreme Court ruled Thursday that Manhattan prosecutors can obtain President Trump's financial records — and punted House Democrats' efforts to access those records to a lower court.

Why it matters: The Manhattan ruling, a 7-2 decision, is a stinging loss for Trump, who has fought relentlessly to keep these records secret.

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Photo Illustration: Sarah Grillo/Axios. Photo: Jemal Countess/Getty Images

Chelsea Clinton is in the very early stages of forming a venture capital firm, Axios has learned from multiple sources.

What we’re hearing: The working name is Metrodora Ventures, after the author of the first medical text known to have been written by a woman (around 2,000 years ago in Greece).

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Illustration: Aïda Amer/Axios

TikTok, the short-video platform popular among teens for sharing funny moments and dance moves, is getting pulled into the deadly serious geopolitical conflict between China and the U.S.

The big picture: More than any other Chinese-owned app, TikTok has found success outside of its homeland. But as the U.S. sounds security alarms and China turns the legal screws on Hong Kong, the company is fighting to prove that it's not beholden to Beijing — and to forestall a threatened ban by the Trump administration.