Politicians are corrupt in every country, but in the U.S. they're as bad as those in third-world countries: they're bought by all the big companies, whether they're pharmaceutical companies, coal companies ("clean energy" said Trump), the gun lobby, and so on. This is so nauseating.
That seems unfair to many politicians in '3rd world' (ie developing or underdeveloped) countries, who may be sincere but challenged by averse situations/conditions not of their making.