The tradition of swearing the oath of office on a Bible stretches back to George Washington, but not all presidents have observed it.

U.S. President Donald Trump took his oath of office on Monday with his right hand raised, but without placing his left hand on the two Bibles that his wife Melania held as she stood by his side. The apparent oversight has no practical impact,

(NEXSTAR) – President Donald Trump, when taking his most recent oath of office, did not appear to place his left hand on either of the Bibles brought to the swearing-in ceremony in the Capitol Rotunda on Monday. The placement of Trump’s left hand, however, has no bearing on the legitimacy of his first day back at the job.