The President shall issue each year a proclamation designating the first Thursday in May as a National Day of Prayer on which the people of the United States may turn to God in prayer and meditation at churches, in groups, and as individuals.According to the private National Day of Prayer Task Force, the theme of this year's observance is Pray for America - UNITY. The Task Force President, Dr. Ronnie Floyd, will host an observance tonight in Statuary Hall in the United States Capitol.
UPDATE: Here is President Trump’s Proclamation.