2020 Democratic presidential candidate U.S. Sen. Bernie Sanders (I-VT), R, speaks at a campaign rally in Grand Park on March 23, 2019 in Los Angeles, California.  (Mario Tama/Getty Images)
Mario Tama/Getty Images
2020 Democratic presidential candidate U.S. Sen. Bernie Sanders (I-VT), R, speaks at a campaign rally in Grand Park on March 23, 2019 in Los Angeles, California. (Mario Tama/Getty Images)
Now playing
00:53
Bernie Sanders: I'm a millionaire
Getty Images/CNN
Now playing
01:31
Ocasio-Cortez 'inclined' to agree that Justice Breyer should retire
Now playing
02:50
'Beyond belief': Pelosi on Trump's DOJ saying they were unaware of data breach
Now playing
02:47
Pelosi: Manchin left door ajar on HR1 and I'm not giving up
WASHINGTON, DC - JULY 28:  Attorney General William Barr appears before the House Oversight Committee In his first congressional testimony in more than a year, Barr is expected to face questions from the committee about his deployment of federal law enforcement agents to Portland, Oregon, and other cities in response to Black Lives Matter protests; his role in using federal agents to violently clear protesters from Lafayette Square near the White House last month before a photo opportunity for President Donald Trump in front of a church; his intervention in court cases involving Trump's allies Roger Stone and Michael Flynn; and other issues. on July 28, 2020 on Capitol Hill in Washington D.C. (Photo by Matt McClain-Pool/Getty Images)
Matt McClain/Pool/Getty Images
WASHINGTON, DC - JULY 28: Attorney General William Barr appears before the House Oversight Committee In his first congressional testimony in more than a year, Barr is expected to face questions from the committee about his deployment of federal law enforcement agents to Portland, Oregon, and other cities in response to Black Lives Matter protests; his role in using federal agents to violently clear protesters from Lafayette Square near the White House last month before a photo opportunity for President Donald Trump in front of a church; his intervention in court cases involving Trump's allies Roger Stone and Michael Flynn; and other issues. on July 28, 2020 on Capitol Hill in Washington D.C. (Photo by Matt McClain-Pool/Getty Images)
Now playing
03:33
Legal analyst: Normally, Barr would have known about subpoenas
CNN
Now playing
02:02
Barr's answer draws scrutiny amid new scandal
CNN
Now playing
03:32
Watergate journalist: Trump's actions go further than Nixon's
raffensberger
CNN
raffensberger
Now playing
03:25
'This is unacceptable': Election official speaks out after threats against wife
Deep State Dogs
Now playing
03:29
See how internet sleuths are hunting down insurrectionists
Vladimir Putin NBC intv
NBC
Vladimir Putin NBC intv
Now playing
04:22
Hear how Putin compared Donald Trump to Joe Biden
Georgia Secretary of State Brad Raffensperger speaks during a news conference on Wednesday, November 11, 2020, in Atlanta.
Brynn Anderson/AP
Georgia Secretary of State Brad Raffensperger speaks during a news conference on Wednesday, November 11, 2020, in Atlanta.
Now playing
02:35
Family of GA secretary of state got death threats months after election
Pennsylvania State House
Now playing
02:04
Pennsylvania lawmaker to GOP: 'Are you not 100% White?'
CNN
Now playing
01:28
'Fishing expedition': Honig slams Trump's DOJ
Getty Images/AP
Now playing
02:08
Trump runs into a problem in revenge quest against GOP governor
CNN
Now playing
02:32
Schiff reacts to DOJ subpoena: Shocked ... but not surprised
CNN
Now playing
04:38
Democratic lawmaker: Trump 'weaponized' DOJ against opponents
Washington CNN —  

Sen. Elizabeth Warren on Wednesday released her 2018 tax returns, laying bare a key financial record the Democratic Party has made a political issue since President Donald Trump took the unusual step of withholding his own tax returns.

According to the returns, the Massachusetts Democrat and presidential hopeful reported an adjusted gross income of $846,394 in 2018 – $324,687 of which came from writing. The documents said she paid $206,488 in federal taxes in 2018 and owed $24,477 in taxes for the year.

Warren previously released 10 years of tax returns last August.

The move to release her latest returns comes as questions continue to swirl about Trump’s own returns and those belonging to Sen. Bernie Sanders of Vermont, a fellow Democratic presidential candidate who has repeatedly promised to release the information “soon.” Sanders, an independent who revealed Tuesday that his own book deals had made him a millionaire, is expected to release his returns on or before Monday, the tax filing deadline for 2018, according to his campaign manager, Faiz Shakir.

In a statement, Warren touted anti-corruption legislation she introduced last year that would require elected officials and candidates for federal office to make public more robust information about their taxes and other financial dealings.

“There’s a crisis of faith in government – and that’s because the American people think the government works for the wealthy and well-connected, not for them. And they’re right. I’ve put out eleven years of my tax returns because no one should ever have to guess who their elected officials are working for. Doing this should be law,” Warren said.

Her 2018 adjusted gross income was down from the previous year; her 2017 federal income tax filing showed she and her husband, Bruce Mann, who is a professor at Harvard Law School, reported a little more than $913,000 in adjusted gross income.

Earlier this year, as Warren prepared to formally kick off her presidential bid, she filed her first financial disclosure report with the Federal Election Commission, which provided an early look at her finances.

The documents showed that her assets, tucked away in retirement and investment accounts, range in value from $2.59 million and $8.38 million. She also has somewhere between $100,001 and $250,000 in her savings account at the First National Bank of Omaha and smaller amounts in savings and checking accounts at other financial institutions. According to the filing, she also received a $300,000 advance for her book, “This Fight is Our Fight.”

CNN’s Fredreka Schouten, Gregory Krieg Kate Sullivan and MJ Lee contributed to this report.