Sen. Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (D-N.J.) on Wednesday became the latest Democratic presidential candidate to release his tax returns, a move that comes amid growing scrutiny over President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's finances.

Booker released 10 years of tax returns on his campaign web site, following in the footsteps of 2020 Democratic rivals and fellow senators Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.), Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (Mass.), Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (Calif.) and Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (N.Y.).

Sen. Amy Klobuchar (Minn.), former Rep. Beto O'Rourke (Texas) and Washington Gov. Jay Inslee have also released at least 10 years of tax returns

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The returns from 2020 contenders are being released amid a push by Congressional Democrats to obtain Trump's tax returns from the IRS.

Trump has said he doesn't want to voluntarily release his tax returns while under audit, and the Treasury Department on Tuesday missed a second deadline from House Democrats to provide them with the president's returns.

Booker's returns showed him earning $152,715 in income last year, almost all of it coming from his wages as senator.



He had total taxes of $22,781, and an effective tax rate of 14.9 percent.

Booker also donated $24,000 to charity in 2018, or 15.7 percent of his income. Booker donated a much higher percentage of his income to charity in 2018 than other candidates have.

The senator had reported much higher income in 2017, after his income was boosted by $275,250 from royalties. That brought his total income and adjusted gross income to $429,983 for 2017.

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Booker released the hardcover version of a book in 2016, and the paperback version of the book in 2017.



He ended up paying $119,701 in taxes in 2017, and donated $20,275 to charity. His effective tax rate for 2017 was 27.8 percent.

Booker is not married and completed his tax returns as a single filer. All of the other presidential candidates who have released their tax returns so far filed their returns jointly with their spouses.

-- Updated at 6:43 p.m.