"I even told him a day or two ago - I saw where this was going," the President said in a telephone interview on "Fox and Friends."
Even before questions were raised about incidents during his time as the White House physician, there were GOP Senators who were not pleased about the President's choice for VA Secretary, wondering aloud about vetting procedures at the White House for top nominees.
"I don't know whether that process is being short circuited now," said Sen. Susan Collins (R-ME) earlier this week.
Lawmakers in both parties quickly said the President needed to find a VA nominee who was familiar with the troubles confronting the massive federal agency.
"The next VA Secretary must have the experience and commitment needed to continue that progress," said Rep. Jim Banks (R-IN). "We owe it to those who have served our country."
As for Jackson, he was at the White House on Thursday, at his regular job as the President's physician.
"Admiral Jackson is a doctor in the United States Navy assigned to the White House and is here at work today," said White House Press Secretary Sarah Huckabee Sanders.