Many political observers were stunned by the new Gallup poll showing the Republican party with a 10-point advantage in the so-called “generic ballot” question. Now we have a better idea how that happened.

According to new, more detailed Gallup numbers, Democratic advantages on issues like health care, the economy, and handling corruption in government have simply disappeared. Democratic leads that were enormous when the party took control of Congress in 2006 have dwindled to nothing or have now become Republican advantages.