Anthony Senecal, who has lived on Trump's Mar-A-Lago estate for 30 years, penned the attack on Obama on Facebook. Though Senecal's Facebook page is public, this message could only be read by his Facebook friends. In an interview with Mother Jones, 74 year old Senecal confirms that those were his words: "I wrote that. I believe that."
A spokeswoman for the Trump campaign says,
"This individual has not worked at Mar-a-Lago for many years."