It was a Hispanic veterans group.
And McCain likes to create the phony strawman that anyone who is against his amnesty plan is a bigot and nativist. Moreover, he likes to be a martyr on the issue and that he showed great courage in supporting it, e.g., he almost lost the nomination. What is unsaid but implied, is that the GOP is the party of bigots since the Dems support amnesty overwhelmingly. McCain never mentions such concepts as the Rule of Law.