By David McCabe
Under Florida law, voter registration applications must be submitted in hard copy and require a signature.
Bush made light of the story in a tweet. "Don’t think I’ve fooled anyone," he said when his son tweeted using the hashtag #HonoraryLatino.
"It's unclear where the paperwork error was made," said Bush spokeswoman Kristy Campbell in a statement. "The Governor's family certainly got a good laugh out of it. He is not Hispanic."
Bush is likely to appeal to Hispanic voters should he run for the White House. He has taken a more moderate position on immigration and speaks fluent Spanish.
He is expected to launch a presidential campaign in the coming months. Though he is courting donors and powerful supporters, he has not said when he plans to announce his intentions.
— This report was updated at 10:58 a.m.