President Joe Biden got a larger amount of “dark money” donations than any presidential nominee in U.S. history, which helped him win the White House.

According to Bloomberg, Biden received a record $145 million in the so-called dark money donations during his presidential campaign, dwarfing the $28.4 million given to his Republican rival—former President Donald Trump.

That sum of dark money also surpasses the previous record of $113 million by presidential nominee Mitt Romney (R) in 2012.

The dark money donations augmented Biden’s $1.5 billion fundraising haul, also breaking a record.

Dark money is defined as donations from anonymous donors, which are difficult for the public to track or discover where they come from. That kind of money sometimes equals foreign entities.

Though many Democrats wanted to ban dark money as it allows supporters to quietly back a candidate without scrutiny, they embraced it in an effort to defeat Trump.

In a statement to Bloomberg, Priorities USA Action Fund—a pro-Biden outside spending group—defended its donations, saying in a statement, “We weren’t going to unilaterally disarm against Trump and the right-wing forces that enabled him.”

The Amistad Project, an initiative of the Thomas More Society legal group, in December released a document that proved Facebook CEO Mark Zuckerberg donated millions of dollars of dark money to government and nongovernment institutions under the guise of helping with elections during the CCP Virus (coronavirus) pandemic, which were directed to certain areas of the battleground states with the specific purpose of tilting the election to then-Democratic presidential candidate Joe Biden.