Simon has said this in English all along, so this message is just presented to the Spanish-listening voters again. There are plenty of legal voters who immigrated from a Spanish-speaking country and still enjoy watching TV in that language. This has nothing to do with illegal voting, since the dead and noncitizen votes are overwhelmingly democrat anyway.
Airing ads during the World Cup soccer game halftimes is a great idea. Too bad they didn't start earlier to catch the US v. Mexico game. (The live broadcasts are all at odd hours, so some non-Spanish-speaking people watch the Spanish stations' delayed broadcasts anyway.)