What did Donald Trump do today?

He accused Democrats of taking his own position on health care.

At a campaign rally in Minnesota tonight, Trump said this:

Republicans want to protect Medicare for our great seniors who have earned it and they have paid for it. And we will always protect Americans with pre-existing conditions, we are going to take care of them... Some of the Democrats have been talking about ending pre-existing conditions. You know what I say? We get a little more money from China. It’ll be just fine. We’ll be just fine.

Last year, when health care--in the form of repealing the ACA, or Obamacare--was the main focus of Trump's domestic agenda, Trump was easily befuddled by the details, and occasionally forgot which side of the debate he was on.

But even by those standards, it is impossible to know what "Democrats" Trump thinks are on the side of ending the ACA's protection for health insurance customers with pre-existing conditions. That protection is a defining feature of Obamacare, which Trump wanted repealed at all costs.

In reality, the party that has shown opposition to the ACA's pre-existing conditions rule is Trump's own. Republican officials from 20 states have signed on to a lawsuit seeking to invalidate the ACA (including those protections) and Trump himself has refused to allow the federal government to defend the law in court.

Trump also did not explain what China had to do with U.S. health insurance.

Why does this matter?

• A president who can't remember what his own position is on major policy issues is dangerously incompetent.

• Accusing other people of your own actions is not a sign of good mental health.