The Obama campaign has a new attack ad running on Spanish-language TV, attacking John McCain for having dos caras (two faces) on immigration, and being in league with the likes of Rush Limbaugh and other Republicans who routinely insult Latinos:"They want us to forget the insults we've put up with, the intolerance," the announcer says, accompanied by text of Rush Limbaugh saying that "Mexicans are stupid and unqualified."McCain has actively courted the Latino vote, and the RNC is running their own Spanish radio ads accusing Obama of being in league with those who killed the immigration bill last year. But the Obama campaign's counter-punches are definitely a whole lot more hard-hitting.