[forgotten man]

When I use your type of arguments with a liberal they always come back with “You are a jerk.”

[Sudetenland]

and there's your answer. If he is unable to back up his claims with facts, then he is guilty of being an idiot, because only an idiot, or an intellectual Neaderthal, would assert something as fact that they can't prove.

It also proves that his belief is a religious belief, since it then become a "faith based belief."

If you "KNOW" something is "true" but can't prove it, then your belief is solely based on faith . . . in this case, the religion of liberalism.

Of course, the best action is to LOL him everytime he claims something like this and ask him where he gets his news, from Jon Stewart, or SNL and then ridicule him.

Alinsky's Rules for Radicals highly recommends ridicule, because it is impossible to counter. It's their playbook, so use it against them.