President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE said Monday he would “take a look” at the allegations that Interior Secretary Ryan Zinke Ryan Keith ZinkeTrump extends Florida offshore drilling pause, expands it to Georgia, South Carolina Conspicuous by their absence from the Republican Convention Trump flails as audience dwindles and ratings plummet MORE violated ethics rules, but added he has not yet seen the claims, which have been referred to the Justice Department.

“I think he’s done a very good job. I do think he’s done a very good job,” Trump told reporters shortly before boarding Air Force One for a series of campaign rallies on the eve of Tuesday's midterm elections.

“I haven’t seen it yet, but I’ll take a look. I’m going to look at any reports, I’ll take a look. Certainly, I would not be happy with that at all,” Trump said of the allegations, adding again that Zinke has “done a very good job as secretary.”

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Interior’s Office of Inspector General (OIG) investigators have at least seven ongoing investigations involving Zinke.

The Justice Department is now investigating whether Zinke improperly entered a business deal regarding land in his hometown of Whitefish, Mont., with David Lesar, the chairman of oilfield services company Halliburton.

The deal, first reported by Politico, involved a nonprofit that Zinke used to lead, but that he exited before becoming Interior secretary — and which his wife now leads. Halliburton stands to benefit from numerous policies at Interior, which oversees oil and gas drilling on federal land, among other responsibilities.

It was first reported last week that Interior's OIG had referred the matter to Justice, which could choose to press criminal charges against Zinke.

Stephen Ryan, Zinke’s lawyer, said last week that the secretary had “done nothing wrong.”

OIG investigators are also looking into whether Zinke acted improperly when he denied an application to build an American Indian casino in Connecticut after a competitor lobbied against it, and when he recommended the shrinking of a Utah national monument in a way that benefited a local lawmaker.

— Jordan Fabian contributed.