Former New Mexico Gov. Gary Johnson has dropped out of the Republican presidential race. He rarely ever polled above 8 — people, not percentage points. He made a popular Rush Limbaugh joke about doggie poop during one of the two debates in which he appeared. He took his shirt off for the papers and rode a bike. He courted pagans, online gamblers, and other knaves. And now he will run for the Libertarian party nomination, and maybe decide the presidential election.