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 expects to shake up his Cabinet after Tuesday's midterm elections, though he downplayed reports of frequent clashes with top officials.

"Administrations make changes usually after midterms and probably we'll be right in that category. I think it's very customary," Trump told reporters as he departed for a campaign rally in Ohio.

"For the most part, I love my Cabinet," he continued. "We have some really talented people. Look at the deals we're making on trade. Look at the job we've done on so many different things, including foreign affairs. I mean, we've done record-setting work. I don't know that we get the credit for it, but that's OK."

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Trump reiterated that he intends to announce his pick for ambassador to the United Nations by the end of the week. He said last week that State Department spokeswoman Heather Nauert is under "very serious consideration" to replace current Ambassador Nikki Haley Nimrata (Nikki) Haley'The soul' versus 'law and order' Author Ryan Girdusky: RNC worked best when highlighting 'regular people' as opposed to 'standard Republicans' GOP lobbyists pleasantly surprised by Republican convention MORE, who is set to depart by year's end.

Trump also indicated 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.

The president said there's no timeline for replacing the head of the Justice Department, despite widespread reports he intends to move on from Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE once the midterms have passed. Trump has repeatedly chastised Sessions over his decision to recuse himself from overseeing the investigation into Russian interference in the 2016 presidential election.

He also expressed surprise when asked whether he would oust Defense Secretary James Mattis James Norman MattisBiden courts veterans amid fallout from Trump military controversies Trump says he wanted to take out Syria's Assad but Mattis opposed it Gary Cohn: 'I haven't made up my mind' on vote for president in November MORE, who has pushed back against rumors of his imminent departure. Trump last month said he was unsure if Mattis would stay on, calling him "sort of a Democrat."

Trump's Cabinet has already experienced significant turnover.

Former Secretary of State Rex Tillerson Rex Wayne TillersonGary Cohn: 'I haven't made up my mind' on vote for president in November Kushner says 'Alice in Wonderland' describes Trump presidency: Woodward book Conspicuous by their absence from the Republican Convention MORE was forced out and replaced by Mike Pompeo Michael (Mike) Richard PompeoOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Overnight Defense: House Democrats unveil stopgap spending measure to GOP opposition | Bill includes .6B for new subs | Trump issues Iran sanctions after world shrugs at US action at UN Navalny calls on Russia to return clothes he was wearing when he fell ill MORE, whose departure as head of the CIA led to Gina Haspel's appointment.

Trump is already on his third national security adviser with John Bolton.

Trump has also had two chiefs of staff and more than one head at the Homeland Security Department, Health and Human Services Department, Veterans Affairs Department and the Environmental Protection Agency.