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Yahoo chief Marissa Mayer (Magnus Höij / Flickr Creative Commons)

Two Republican senators, including the chair of the chamber's Commerce Committee, aren't pleased with Yahoo's response to their inquiries about a pair of massive data breaches that exposed the company's users.

"Despite several inquiries by Committee staff seeking information about the security of Yahoo! user accounts, company officials have thus far been unable to provide answers to many basic questions about the reported breaches," said Sen. John Thune and Sen. Jerry Moran in a letter to CEO Marissa Mayer, adding that "Yahoo!'s recent, last-minute cancellation of a planned congressional staff briefing ... has prompted concerns about the company's willingness to deal with Congress with complete candor about these recent events."

Key context: The senators want information related to two different data breaches, one that occurred in 2013 and affected more than a billion users and another in 2014 that hit 500 million users.

What's next: The senators have asked for answers to their questions by February 23. "We're in receipt of the letter, reviewing it and will respond as appropriate," said a spokesperson for the company in an email.

The bigger picture: Questions about the data breaches and whether Yahoo appropriately disclosed them have roiled its proposed combination with Verizon.

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Kellyanne Conway addresses the 2020 Republican National Convention. Photo: Nicholas Kamm/AFP via Getty Images

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Why it matters: If there's a currency in this town, it's power, so we've asked several former Washington power brokers to share their best advice as a new administration and new Congress settle in.

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GOP holdouts press on with plans to crush Cheney

Screenshot of emails to a member of Congress from individuals who signed an Americans for Limited Government petition against Rep. Liz Cheney. Photo obtained by Axios

Pro-Trump holdouts in the House are forging ahead with an uphill campaign to oust Rep. Liz Cheney as head of the chamber's Republican caucus even though Minority Leader Kevin McCarthy told them to back down.

Why it matters: What happens next will be a test of McCarthy's party control and the sincerity of his opposition to the movement. Cheney (R-Wyo.) is seen as a potential leadership rival to the California Republican.

Democrats aim to punish House GOP for Capitol riot

Speaker Nancy Pelosi passes through a newly installed metal detector at the House floor entrance Thursday. Photo: Drew Angerer/Getty Images

House Democrats plan to take advantage of corporate efforts to cut funding for Republicans who opposed certifying the 2020 election results, with a plan to target vulnerable members in the pivotal 2022 midterms for their role in the Jan. 6 violence.

Why it matters: It's unclear whether the Democrats' strategy will manifest itself in ads or earned media in the targeted races or just be a stunt to raise money for themselves. But the Capitol violence will be central to the party's messaging as it seeks to maintain its narrow majorities in Congress.