Biden warned of oligarchs. Some officials worry he may have helped create one.
After half a century in politics, Biden bids farewell in an Oval Office address
Biden warns in farewell address that an 'oligarchy' of ultrarich in US threatens future of democracy
Former Presidents Obama, Clinton and Bush won't attend Trump's inaugural lunch
Here's everyone performing at the presidential inauguration
Flags to be raised for Trump's inauguration, despite half-staff order for Carter's death