Former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE signed the No Fossil Fuel Money pledge Thursday to vow he would not take any donations for his White House bid from the PACs, lobbyists or executives of fossil fuel companies.

From day one, we've refused to take money from any corporate PACs or lobbyists. Today, I’m building on that base by signing @NoFossilMoney’s pledge to reject support from the PACs, lobbyists, or executives of fossil fuel companies.



I work for you — not any industry. pic.twitter.com/f8HxB89F9V — Joe Biden (@JoeBiden) June 27, 2019

Biden had initially said he would sign the pledge early this month when he unveiled his plan to tackle climate change. He is the 20th Democratic candidate to sign.

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“We congratulate Vice President Biden and Senator Bennet for signing the No Fossil Fuel Money pledge and for this example of climate leadership that prioritizes people over polluters. Rejecting the fossil fuel industry’s money has become standard practice among Democratic presidential contenders, and not a moment too soon,” David Turnbull, strategic communications director of Oil Change U.S., which helped coordinate the pledge, said in a press release.

Sen. Michael Bennet Michael Farrand BennetOVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Senate Democrats demand White House fire controversial head of public lands agency Next crisis, keep people working and give them raises MORE (D-Colo.), another presidential contender, signed the pledge Tuesday.



Biden’s signing comes just hours ahead of his appearance at the first Democratic primary debate where nine other candidates are expected to try to cut him down from his front-runner status in the crowded field.

The former vice president, a centrist in a primary pack dominated by progressives, has been on the receiving end of veiled swipes from his opponents and outright criticism from several advocacy groups over his record in the Senate.



He most recently garnered controversy over his comments touting his ability to work with two segregationist senators during his time in Congress.

He also faced criticism earlier this year when a Biden adviser spoke of the need to find a "middle ground" to climate change, with many progressives calling on the former vice president to back the Green New Deal.

However, Biden ended up garnering praise for his environmental plan, which the Sunrise Movement called “a comprehensive climate plan that cites the Green New Deal and names climate change as the greatest challenge facing America and the world.”