(Credit: AP Photo/Evan Vucci) President Donald Trump, like his predecessors before him, has discovered the potent language of religious tolerance and interfaith unity when discussing Islam, as he demonstrated in his speech in Saudi Arabia to leaders of some 50 Muslim nations. But unlike previous presidents, he has not linked that rhetoric with recognition of the large, vibrant Muslim community in the U.S. As a historian who has studied efforts in the past to build acceptance of religious pluralism in the United States, I am concerned by Trump’s departure from historical precedent. Can a message of tolerance to Islam abroad be persuasive without a corresponding affirmation of American Muslims at home? Toned-down Trump In his widely anticipated remarks on Islam and terrorism, President Trump avoided many of the missteps his critics feared.