Clinton, Kaine to release tax returns to pressure Trump: report
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Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonTrump: Cohen only became a ‘rat’ after FBI 'broke into' office Giuliani indicates Trump Tower Moscow discussions took place up until November 2016 Hillary Clinton writes letter to 8-year-old girl who lost class president to male classmate MORE and her running mate, Sen. Tim KaineTimothy (Tim) Michael KaineTim Kaine: Trump was 'fact-checked to his face' by Pelosi, Schumer While G-20 Summit was promising for US- China trade relations, Congress must still push for an exclusion process Overnight Defense — Presented by Raytheon — Border deployment 'peaked' at 5,800 troops | Trump sanctions 17 Saudis over Khashoggi killing | Senators offer bill to press Trump on Saudis | Paul effort to block Bahrain arms sale fails MORE (D-Va.), will release a batch of tax returns in an effort to pressure Donald TrumpDonald John TrumpFamily says Trump travel ban preventing mother from seeing dying son Saudi Arabia rejects Senate position on Khashoggi killing Five things to know about the Trump inauguration investigation MORE into releasing his, CNBC reported Thursday morning. 

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Clinton will release her 2015 returns this week, while Kaine is expected to release 10 years of tax returns, the report said. 

The returns will show Clinton's effective tax rate around 35 percent and her charitable donations making up 10 percent, according to CNBC. 

Clinton also released eight years of returns — covering 2007 to 2014 — earlier in the campaign. Returns for Clinton and her husband, former President Bill ClintonWilliam (Bill) Jefferson ClintonTrump will likely win reelection in 2020 Utah to impose nation's strictest DUI limit Ocasio-Cortez: By Lindsey Graham's 1999 standard for Clinton, Trump should be impeached MORE, are now public dating back to 1977 because of the couple's extensive political careers.

Trump, meanwhile, has said he won't release his tax returns because they are under audit by the IRS. 

The IRS has said Trump can still release the returns despite an audit. 

He would be the first presidential nominee in 40 years not to release his income tax returns. 

Trump's campaign chief, Paul Manafort, has said Trump likely won't release his tax returns before the election in November.