SPOILER ALERT So I read a couple of articles and the Wikipedia plot summary and...
It's basically a Leftist "cautionary tale" about what will happen if we elect the hideously evil Bad Orange Man.
So to sum it up, there's an evil, fascist President who's been in power for 3 terms, imposing restrictions on the press and other dictatorial stuff the Left hates, and Texas and California unite to depose him and restore Democracy. In the end, the victorious troops of the alliance are seen in a photo posing with smiles over the President's bullet-riddled corpse. Journalists are the real heroes, bringing "the truth" to America.
Sounds EXACTLY like the bullshit Chicken Little level fear-inspired Leftist Boogie Man caricature of Trump that the Democrats are trying so hard to push down our throats, garnished with the Left's fantasy of turning Texas blue and glorifying the propaganda machine that is the modern American press.
And don't forget this film was defecated by the same director who made the vile, anti-male movie, "Men", so you can be assured of his far-left mindset right from the get-go.