Taqiyya. It’s what muslims do. He lied to “we the people”, proclaiming himself a Christian so he could further Islam in the United States.
taqiyyah:-- In Islam, the practice of concealing ones belief and foregoing ordinary religious duties when under threat of death or injury.-- Lying to non-Muslims in advance for Islam is allowed till Judgment Day Quran 3:28, 16:106
-- It is fine to deceive the infidels. They are just pigs anyways. In fact, al-Taqiyyah of the Qur'an compels protection of Islam by deception.