Donald Trump's refusal to attend the inauguration of Joe Biden will go down in history. It was yet another break with tradition for Trump. One of many during his four years in office. It did not go unnoticed. The former US presidents: Barack Obama, George W. Bush and Bill Clinton -- who were all present at yesterday's inauguration -- used a video message to show that they stand with Biden, not only in his endeavours to lead the nation, but also in his respect for tradition and for the office of the presidency. We talk to former GOP Congressman Denver Riggleman about the future of the Republican party.