donald Trump is not known for the consistency of his views. In the six months since he became president, Trump has changed his mind on China, on Nato and on military intervention in Syria. On healthcare, he seems to change his mind twice before lunch.

But it's not just the issues that have fallen victim to Trump's caprices. It's his colleagues and allies, too. This week it was attorney general Jeff Sessions who faced Trump's ire.

But Sessions wasn't the first to fall out of favor with the president. Here are some others.