Unlike her grift-happy fellow members of the Trump administration, Elaine Chao has so far largely flown under the radar. This may be in part because the Department of Transportation doesn’t tend to be a breeding ground for controversy, or because she isn’t as plainly unfit for her post as many of her peers. But a new report Tuesday suggested she may be just as worthy of scrutiny. According to The Wall Street Journal, Chao still holds shares in Vulcan, the nation’s largest construction materials supplier, despite having promised to divest from the company more than a year ago.

Chao, who sat on the company’s board, signed an agreement ahead of her Senate confirmation in 2017 vowing, in part, to resign from her post and “receive a cash payout for all of my vested deferred stock units in April of the year following the year of my separation from service.” “I will not participate personally and substantially in any particular matter that to my knowledge has a direct and predictable effect on the financial interests of Vulcan Materials,” she said in the agreement, promising to “avoid any actual or apparent conflict of interest” and adding that she was “committed to the highest standards of ethical conduct for government officials.”

According to the Journal, however, Chao was paid out in stock shares, which have risen 13 percent since April 2018—the month she promised to be separated from Vulcan—and netted her a more than $40,000 gain. “If you look at her ethics agreement, it provides for a complete disentanglement of her interest from Vulcan Materials, and that’s what was represented to the Senate,” Walter Schaub, the former head of the Office of Government Ethics, told the Journal. “For the head of the DOT to have a financial interest in an asphalt company, that is not sending a message to employees of DOT that she is making ethics a priority.”

Of course, Chao isn’t the only Trump official to disregard ethics concerns. Donald Trump gatecrashed Washington on a promise to “drain the swamp,” but his conflict-riddled government has effectively served as a front for grifters of all stripes. There’s Scott Pruitt, the former Environmental Protection Agency head who used his post to jetset on taxpayers’ dime and find a job for his wife, among a dizzying array of other venalities. There’s Tom Price, who was also forced to resign in 2017 amid questions about his extensive taxpayer-funded travel. There’s Ryan Zinke, the former Interior secretary, who awarded a contract to restore Puerto Rico’s electrical grid to an ill-equipped two-person company run by his neighbor. Wilbur Ross, Trump’s Commerce secretary, also promised to divest from his stocks but didn’t, and saw those shares increase in value. Treasury secretary Steve Mnuchin similarly vowed to divest from his film company, StormChaser Partners, but sneakily sold his ownership interest to his wife. And of course there’s the big man himself, whose astonishing web of conflicts of interest have made it impossible to distinguish the line is between his presidency and his business.

Chao’s department has waved off the allegations, claiming that the ethics agreement she signed was flawed and will be “clarified to avoid confusion.” (After publication of this story, a spokesperson for the D.O.T. forwarded a statement criticizing the news media for attempting to “substitute their opinions for the decisions of senior career ethics officials” who determined that Chao’s stake in Vulcan does not constitute a conflict.) But flawed or not, the discrepancy raises serious concerns about the appearance of conflict—especially because her actions could impact her shares in Vulcan. The sweeping infrastructure plans she and Trump have discussed would represent a windfall for the construction materials giant. And, according to American Public Media, stocks in Vulcan appeared to rise in the days after Chao and Trump publicly talked infrastructure.

More Great Stories from Vanity Fair

— Visit our brand-new, searchable digital archive now!

— How Beto O’Rourke lost his narrative

— Wall Street’s dangerous new addiction

— Can Kamala Harris catch fire?

— Is Uber’s the biggest I.P.O. flop in history?

— From the archives: Sixteen words that changed the world

Looking for more? Sign up for our daily Hive newsletter and never miss a story.