This is despicable. These Spanish-language ads, targeting Hispanics, attempt to tar John McCain with Rush Limbaugh's 1990s comments on Mexican immigration. Of course, as the Obama campaign surely knows, Limbaugh has been a harsh critic of McCain's views on immigration. But, I guess the Obama campaign figures that the ad's audience will just think that since both men are white Republicans then they must hold the same views on everything. Thus, ironically, this ad attempts to illicit and nurture bigotry in its viewers, which means that the Obama campaign does not respect them. When someone expects you to be a bigot, they don't think very highly of you.
In case you may have forgotten the pastoral insights of the Rev. Wright, go here. These recent ads are cut from the same demagogic cloth.