In California, the election campaign of a Republican congressional candidate is being cited as the possible source of a letter aimed at discouraging Latinos to vote. State investigators say they’re looking into whether supporters of Orange County Republican Tan Nguyen are behind a message that falsely claims it’s a crime for immigrants to vote. The letter is written in Spanish and warns immigrants of jail or deportation if they vote next month. Nguyen has run on an openly anti-immigration platform. Investigators say they’ve tracked down where the letters were printed and how they were financed, but did not provide further details.