IRS Commissioner Charles Rettig. Photo: Aaron P. Bernstein/Getty Images

House Democrats set an April 23 deadline for the Internal Revenue Service to turn over President Trump's tax returns.

Why now: In a 2-page letter sent Saturday by the Ways and Means Committee Chairman Richard Neal (D-Mass.) to IRS Commissioner Charles Rettig, a second and final deadline was determined within the next 10 days, calling for 6 years of Trump's personal and business tax returns. The letter dives into the committee's legal justification for the request. "It is not the proper function of the IRS, Treasury, or Justice to question or second guess the motivations of the Committee or its reasonable determinations regarding its need for the requested tax returns and return information," Neal wrote in the letter. If the IRS does not comply, the lawmakers could go to court. This comes after Treasury Secretary Steven Mnuchin said his department would be unable to fulfill the original April 10 deadline to hand over Trump's returns.

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Cleanup on aisle Biden

Photo: Andrew Caballero-Reynolds/AFP via Getty Images

After two gaffes and a low blow from President Trump questioning his faith, Joe Biden spent Thursday evening off his own message — clarifying comments and responding to attacks.

Why it matters: Biden’s responses reflect what we could see a lot more of in the next few months — cringeworthy comments and Trump smears, smacking into each other and pulling the Democrat off course.

2020 election strategy: Hire all the lawyers

Illustration: Eniola Odetunde/Axios

The coronavirus has sent overall U.S. unemployment into the double digits — but it's a sort of full-employment act for election law attorneys.

The big picture: The prospect of extended court fights over COVID-19-related voting changes, an absentee ballot avalanche, foreign interference and contested presidential results has prompted a hire-all-the-lawyers binge by candidates and campaigns — not just in swing states but around the country.

Right-wing media defanged by dissolving anti-Biden storylines

Data: NewsWhip; Chart: Naema Ahmed/Axios

The three biggest anti-Joe Biden storylines in right-wing media over the last year have either fizzled or are getting less online traction than they used to, according to data from NewsWhip provided exclusively to Axios.

Why it matters: This dynamic has rendered a formidable media ecosystem less effective in boosting President Trump as we move into the heart of the 2020 campaign.