The US tv coverage does mention the Green and Libertarian candidates, they also get a reasonable amount of air time.
The TV coverage in the US is 24/7, wall to wall on the presidential election campaign. Hilary may not be perfect, who is? She has to be a safer pair of hands than Trump who is the nightmare candidate. Someone with his temperament and attitudes is not fit to be the POTUS. I'm with Wilma on this one, Hilary is the lesser of two evils by a long way, than the Trump is. Voting for the Greens or the Libertarians would be a wasted vote and also, risk allowing Trump to be president. The Libertarian candidate was asked his view on the Syrian war, especially on Allepo. His response? "What is an Alepo" - Hilary for President