Donald Trump Sworn in as US President
Donald Trump has officially become the 47th president of the United States. Defying the critics and the odds, Trump has been sworn in for a second time, inside the Capitol Rotunda. It marks one of the biggest political comebacks of all time. At 78 years of age, Donald Trump is now the oldest person to become president. Guest: Tevi Troy, Presidential historian and former US Deputy Health Secretary in the administration of George W Bush Producer: Linda LoPresti