Mick Mulvaney explains how President Donald Trump made a big mistake hiring John Bolton. It all comes down to this - Trump was new at politics and being president and didn't hire all the best people. Trump lacked the experience, and so when he made his administration, some of the picks, like John Bolton, simply weren't the best people.

Trump needed a team who could work well with him, offer some pushback and conversations on things, and ultimately come to the best solution for any issues they're working on.

Mulvaney stresses that Trump's inexperience in politics is what lead to people like John Bolton being hired, and eventually fired.

On the bright side, President Trump is learning who is worth having in his administration, and who clearly is not as he "drains the swamp" in DC.