Media outlet Gawker has published what it says is businessman and GOP presidential front-runner Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE’s cellphone number.

Gawker published the New York City phone number Monday “[i]n the spirit of open and fair political debate” after Trump gave out GOP rival Sen. Lindsey Graham Lindsey Olin GrahamMcConnell locks down key GOP votes in Supreme Court fight Will Republicans' rank hypocrisy hinder their rush to replace Ginsburg? Momentum growing among Republicans for Supreme Court vote before Election Day MORE's (S.C.) number last month.

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“Since Trump, in his considered political judgment, has decided that opening up a direct, personal channel of communications between his supporters and his primary opponents is a noble campaign tactic, we think it’s only fair and right that Republican primary voters be able to reach out to Trump himself,” Gawker's Sam Biddle wrote.

Trump's campaign downplayed the significance of the number being revealed publicly, telling The Hill that the number is “very old” and not one that Trump uses.

“Mr. Trump has several numbers so this is not an issue,” a campaign source said.

Gawker suggested that an aide for Trump was answering some of the calls placed to the number. Calls to the number placed minutes after it was posted went directly to voicemail, which was full.

Trump is currently leading the crowded GOP field by double digits. He took 26 percent in a Monmouth University poll released on Monday, followed by former Florida Gov. Jeb Bush at 12 percent.