Clinton Foundation executives have been sparring with a nonprofit watchdog over whether the charity should remain on a "watch list" of philanthropies with potential problems.

Charity Navigator, a nonprofit that ranks charities and purports to provide a "guide to intelligent giving," has claimed the Clinton Foundation attempted to "strong-arm" its way off the list by demanding meetings with board members and insisting the watchdog amend its criteria, New York Magazine reported Tuesday.

"We had previously evaluated this organization, but have since determined that this charity's atypical business model can not be accurately captured," Charity Navigator wrote of the Clinton Foundation, which it reportedly added to its list of suspicious philanthropies March 13.

Ken Berger, the former CEO of Charity Navigator, told New York Magazine the top staffers at Bill and Hillary Clinton's massive family charity sought special treatment from the watchdog.

"They felt they were of such importance that we should deviate from our normal process," Berger said. "They were irritated by that."

Charity Navigator cites stories from the Washington Post, The Wall Street Journal and Politico among the evidence of potential misconduct that landed the Clinton Foundation on the watch list.

The Clinton Foundation will stay on the watch list for a minimum of six months, according to Charity Navigator's stated policy.

Maura Pally, acting CEO of the Clinton Foundation, told New York Magazine that several foundation officials had attempted to call the watchdog just before news of its designation as a watch-listed charity became public, but none could reach anyone at Charity Navigator.

After being placed on the watch list, the Clinton Foundation's donors and glitzy fundraising events have faced additional scrutiny as Hillary Clinton wraps up the first month of her official presidential campaign.