How can any sane person believe any of the lies from OAN AND NEWSMAX?

When people are desperate, they will hang on to anything if it means, their savior is right. This is what happened in Germany and look how it ended.  

Are you sure they're lying? How do you know? Is it because what they're saying on those channels is not the same as CNN and MSNBC?

There is no way. The people who believe that tripe are not what most of would call 'sane'.