DNC almost gets it right

DNC Goes All In: Takes On Birthers, Conservative "Mob" In New Web Ad.

The link includes embedded video of web ad, together with this commentary:

It includes a veritable greatest hits list of conservative attacks on Obama, looping it all together to make the case that "the right wing extremist Republican base" has overrun the GOP.

The bit in quotes is directly from the web ad.

They almost got it right... almost.
"The right wing extremist Republican base" hasn't overrun the GOP.
"The right wing extremist Republican base" IS the GOP!