Moderate Republican Brooks of PBS Newshour says Trump is a Stooge of a foreign power:

But not an agent of a foreign power. (according to Mueller in the Mueller report).

So, to me, what is the difference between being the stooge of a foreign power and the agent of a foreign power anyway?

Both are equally bought and paid for after all by that foreign power.  And both damage our democracy in a Republic and destroy it in the beginning, in the middle and in the end always.