Donald Trump has long touted his business acumen as evidence that he is capable of running the country. But within the last 24 hours, the New York billionaire’s argument that his bank account qualifies him for the White House has gone to pieces. Shortly after Newsweek reported that one of the G.O.P. nominee’s companies may have violated the U.S. embargo with Cuba in the late 1990s, the New York attorney general’s office says that the Donald J. Trump Foundation may have been soliciting money illegally.

The Washington Post reports that Trump’s private family foundation, which has been accused of engaging in illegal acts of “self-dealing” and using tax-exempt charity funds to settle personal lawsuits, and which made at least one illegal political contribution, never obtained the certification required by the state of New York to accept solicited donations.

The Trump Foundation reportedly should have been classified as a different type of charity based on its scope and size, which would have subjected it to more stringent tax audits. Trump was the sole donor to the Trump Foundation from its founding in 1987 until 2006, after which time it began accepting donations from outsiders. The last time Trump reportedly donated to his own foundation was in 2008, but since that time it has received a total of more than $4.3 million from other donors, according to tax filings—well over the $25,000 threshold for charities without the proper certification. According to the Post, if a charity solicits more than $25,000 from the public annually, it must register as a “7A” organization. Paperwork obtained by the Post reveals that in 2014, the Trump Foundation was registered as an “EPTL” organization, under the Estates, Powers and Trusts Law. A spokesperson from the New York attorney general’s office confirmed that, as of this week, the charity had not obtained the 7A registration.

Not all of the donations to the Trump Foundation might be classified as “solicited,” which the Post defines as “to directly or indirectly make a request for a contribution, whether express or implied, through any medium.” But there are several reported instances that are highly likely to fall under that banner. For instance, earlier this year, the Trump Foundation held a fund-raiser for veterans in lieu of attending a Republican primary debate. The presidential hopeful collected donations via the Trump Foundation and raised more than $1.67 million, according to the Web site set up to collect donations—well above the $25,000 threshold. (The Trump Foundation did not respond to the *Post’*s request for comment.)

The office of New York attorney general Eric Schneiderman did not comment to the Post on whether it is investigating the Trump Foundation’s registration status. But earlier this month, Schneiderman launched a separate investigation into the allegations of self-dealing and a political contribution to Florida attorney general Pam Bondi’s re-election campaign. (The donation was a violation of tax laws, for which Trump paid a fine of $2,500.) If Schneiderman does find that the Trump Foundation illegally collected donations, he could order the charity to halt operations and potentially force Trump to return the money raised in violation of the law. Under the 7A classification, charities are subject to an annual audit by outside accountants, a tougher standard than the Trump Foundation has faced to date, the Post reports.