Kirsten Gillibrand releases 2018 tax returns

Sen. Kirsten Gillibrand (D-N.Y.) became the first 2020 presidential candidate to publicly release their 2018 tax returns on Wednesday and challenged her rivals to do the same in a video.

The big picture: While obtaining President Trump’s tax returns has become something of a white whale for the left since the 2016 presidential election, personal financial disclosures could become a litmus test among Democratic candidates in 2020. None of the other candidates have fully released their most recent tax filings, per the New York Times, though Sen. Elizabeth Warren (D-Mass.) did release a 10-year tax history last year.

Go deeper: Everything else you need to know about the 2020 candidates