Nihil est incertius vulgo, nihil obscurius voluntate hominum, nihil fallacius ratione tota comitiorum. (Nothing is more unpredictable than the mob, nothing more obscure than public opinion, nothing more deceptive than the whole political system.)
I've watched politics for years. Republicans rarely get credit for the good things that happen in the economy during their watch. Democrats always get more credit than they deserve. They are just better at political discourse that we are.
The primary cause of disorder in ourselves is the seeking of reality promised by another... It is a most extraordinary thing that although most of us are opposed to political tyranny and dictatorship, we inwardly accept the authority, the tyranny, of another to twist our minds and our way of life.
Our vulnerability to Russia or any other foreign power is directly related to how divided, partisan, dysfunctional our political process is. That's the thing that makes us vulnerable.