Art Sisneros, one of 538 electors with the final say on who becomes the next U.S. president, says he's undecided on how to vote.

The 40-year-old family man from Dayton is among the 38 people chosen to represent Texas in the Electoral College. That group will gather Dec. 19 in 50 state capitols around the country to vote on who wins the election.

If all electors cast their votes in keeping with the winner of each state, then Donald Trump wins, even though Hillary Clinton received more popular votes overall.

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Sisneros, an industrial salesman, told Texas Monthly on Wednesday that he was still mulling things over.

"I honestly still have not made my decision yet," he told the magazine. "I've got three options - to vote for Trump, to be faithless and vote for somebody else, or to resign."

His use of the word "faithless" is not melodrama; it's from the technical term, "faithless elector," or someone who goes rogue and does not vote for the candidate who won that elector's state.

Faithless electors are rare and have never changed a presidential election result, according to the Associated Press.

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Judging by Sisneros' Facebook page, he's been getting a lot of feedback, but hasn't lost his sense of humor over it.

In a post Wednesday, Sisneros said, "'Run for Presidential Elector,' they said. 'It will be fun,' they said. Apparently they weren't aware there would be a push to contact all the electors with 100's of messages. But I confess, it has been fun."

One commenter told him, "Vote for who the constituents of your district want, not what you want. You are a representative of the people. Don't let your ideology get in the way of fair and Democratic representation. This is a democracy where the people's voice needs to prevail."

Sisneros responded, "I am sorry Peter, but we are NOT a democracy. But yes the constituents in my district are a factor I am considering as I weigh this decision out."

Not surprisingly, Sisneros did not immediately respond to a Facebook message Thursday.