Messiha became an advisor to Marine Le Pen in 2014.[1] In May 2016, he became the spokesperson of the "Horaces", a group of high-ranking civil servants and business executives, supporting Marine Le Pen, who meet once a month and discuss the political platform of the National Rally.[3][2][4] While the group announces more than 155 members, Messiha is the only one whose name has been publicly known so far.[4] According to Dominique Albertini of Libération, Messiha's role within the National Rally is to represent "the drawing power of [the party] towards high-ranking civil servants".[3]