This is obvious to most sensible people. US politicians are, for the most part, total scumbags who lie about almost everything.
And it's not like they tell little white lies that harm nobody. Their lies are often gigantic and extremely harmful to large amounts of people.
And they do all this in pursuit of money and power. Only a complete fool would believe the US political class are motivated by love for America.
But it's not entirely their fault. The idiots who keep voting these scumbags into power share a large amount of the blame. It is the cowardice, greed, and stupidity of the average voter that empowers these scumbags.