The ones who have businesses or have any shred of any chance of voting for a Republican ALREADY UNDERSTAND ENGLISH!!!
The ones who don't understand English are not even voters.
A lot of people in this country are bilingual. They actually are fluent in english plus spanish/mandarin/italian/russian/ and god forbid french.
Often the best, most affordable way to reach these folks is by advertising in their native tongue.
There are a lot of reasons to bash McCain. This is not one of them.