President Trump on Tuesdsay told reporters he believes the investigation that involved of his presidential campaign, which eventually helped lead to the investigation by special counsel Robert Mueller, was launched with orders from officials “very high up” in the Obama administration.

“It started fairly low, but with instructions from the high up,” the president told reporters on Capitol Hill before attending a policy lunch with Senate Republicans. “This should never happen to a president again. We can’t allow that to take place.”

But Trump suggested the West Wing of former President Barack Obama’s White House may have been involved.

“I don’t want to say that, but I think you know the answer,” he said.

[Related: McConnell: Mueller memo 'conclusively' exonerates Trump — but not Obama]

Trump lauded the findings of special counsel Mueller’s investigation into collusion between the Trump campaign and Russia.

“It could not have been better. It said ‘no obstruction, no collusion.’ It could not have been better,” he said.

Mueller on Friday submitted to the Justice Department his confidential report on his investigation into whether members of the Trump campaign colluded with Russia, bringing to a close his 22-month probe.

Attorney General William Barr Sunday sent a four-page summary of Mueller’s findings to Congress. The investigation, Barr told lawmakers, “did not find that the Trump campaign or anyone associated with it conspired or coordinated with Russia in its efforts to influence the 2016 U.S. presidential election."

The attorney general also told lawmakers he and Deputy Attorney General Rod Rosenstein concluded the evidence from Mueller’s probe “is not sufficient to establish that the president committed an obstruction-of-justice offense.”

Mueller’s investigation cast a shadow over the Trump White House, but in the wake of its conclusion, the president has claimed vindication and victory.