While I doubt the movie is a Political Diatribe directed at a single politician, I am not surprised people find political correlaries to today, I believe they are supposed to.
The OT had a very simple morale dichotomy:
Empire/soul less technology = bad
Rebellion/ noble spirit= good
The PT has nothing that simple. The Grand Ole Republic is shown to be a massive behemoth of a Democracy, that often seems ineffectual.
The Jedi Order, the vaunted thing that Luke and all of us wanted to become, is less an order of Enlightentment and Well Being that we have always thought, but a rigid order, lacking flexibility.
One of the underlying themes of the PT is what happens when once good institutions become ineffectual.