Step one: Build the straw man. Ignore facts and make outlandish lies/slander. Redefine the facts. "liberals want to take your guns away and turn the U.S. over to the U.N."
Step 2: Knock down the straw man. "That flies in the face of everything we Americans believe in."
Step 3: Connect step 2 to step 1. "Only a communist would think of something like that."
Step 4: "Negate" your opponant by opposing the conclusion in step 3. "I hate those liberal communists. If they think us right-wingers will sit quietly while they destroy the country the're dead wrong."