Tony Blair was a criminal conspirator in the Cheney/Bush attack on Iraq and France was a criminal conspirator in the attack on Libya. Europe has not been innocent in the meddling in other people's countries. They use the USA to do their dirty work.

Given that Europe has been on the Marshall Plan for the last 75 years whereby the US financially supports them while they practice socialism, I think the US President has a right to his opinion. Expressing an opinion on Twitter is mild compared to the coups that the bureaucracy in the US (who hates Trump) has staged in so many countries. Obama did a lot more damage than the Neocons with his support of Islamic terrorism, BTW.