Who is Bill Stepien? Former Trump campaign manager's testimony plays central role in Jan. 6 hearing

Bill Stepien, President Trump's former campaign manager, played a key role in Monday's House Jan. 6 committee public hearing. The hearing focused on how the then-president declared victory on election night, despite being told that he didn't have the votes to win and how he continued to embrace false claims of election fraud. 

Stepein was set to testify in person at Monday's hearing, but canceled at the last minute after his wife went into labor. 

Given his absence, the House committee investigating the riot used recorded video testimony from Stepien, who described what it was like during and after Election Day trying to get the president to believe there was no evidence of a stolen election, as Mr. Trump repeatedly claimed.