What did Donald Trump do today?

He attacked France for trying to implement one of his own policies.

This morning, Trump complained on Twitter that there was not enough news coverage of the demonstrations in Paris against a newly imposed fuel tax. Trump falsely attributed this to the Paris Agreement on fighting climate change, which he forced the United States out of last year.

In reality, the demonstrations and riots were about a gas tax not related to the Paris Agreement (which is named for the city where it was signed). It's not clear if Trump simply forgot what the treaty was about, or got confused because of the similarity of names, or if this was a deliberate lie.

Trump himself supports increasing the gas tax in the United States.

Incidentally, there have been no reports of French protestors chanting "we want Trump" in the country where his approval rating is at 10%. Trump, who is known to scour the internet in search of praise of himself, has apparently fallen for a hoax that reused video of a far-right protest in Britain last year.

Why should anyone care about this?

• It's bad if the president doesn't know what's in the treaties he's breaking.

• It's also bad if the president can't remember what his own policies are.

• Hypocrisy, which is attacking others for things you do yourself, is bad.

• A president who automatically believes any flattery of him, no matter how obviously staged, is one who is dangerously easy to manipulate.