OPINION

Sen. John McCain defends comments linking illegal immigrants to Arizona wildfires

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Sen. John McCain (R-Ariz.) on Monday defended his statement over the weekend that illegal immigrants were responsible for some Arizona wildfires, citing congressional testimony and published reports to back his claim (see video below).

Speaking from his home state Saturday, McCain said there was "substantial evidence that some of these fires have been caused by people who have crossed our border illegally." He didn't specify what evidence, however.