These misguided "true conservatives" who think it is better to have gridlock or let the country "go down the tubes by letting the Dems win", then (easily) take it back and "fix" things, are rooted in disillusionment.
After the Dems actually have to present some actual plan of where they intend to lead this country if they win, it will strike such deep fear in the hearts of all conservatives, they will gladly crawl across broken glass to vote "R".