At his inauguration, Donald Trump did not place his hand on the Bible while taking the oath, raising questions regarding the customary practice. The Constitution does not require a Bible during the ceremony, allowing flexibility in how the oath is administered. Many observers noted the lack of a Bible touch, despite two Bibles held by First Lady Melania Trump. Historically, several presidents have taken their oaths without a Bible, including Calvin Coolidge and Lyndon B. Johnson. Trump's omission reignited discussions about the significance of religious elements in presidential ceremonies.