"a bunch of thoughtful, well-educated people"
Needs Work. Nothing fails like failure.
The GOP needs billboards. Unfortunately most of them in America are controlled by a unit of CBS that is controlled by the left wing Sumner Redstone's National Amusements.
In addition to the above slogan other billboard ready displays would include the unemployment rates on the day Obama was elected and 2 years later, just as follows.
Another could just feature photographs of Bush, Cheney, McCain over the word Adults. The sharp version would have photos of Emanuel, Pelosi, Frank over the word Not.
Note there are varying ways to measure unemployment. A 09/2008 vs 09/2010 comparison of U-6, including the discouraged and marginal or part time workers as unemployed, would yield 11.2% vs 17.1%.