A famous last name, business deals and a looming probe: Republicans ramp up investigation of Biden family

For years, as Joe Biden has sought to assure the American public he deserves their trust, he’s relied upon a go-to phrase meant to underscore his credibility: “I give you my word as a Biden.”

But that’s not the only way the Biden family name has been used. The president’s brothers have invoked it in their private business pursuits over the years to suggest access to power and influence, according to a CNN review of court documents, emails and video recordings as well as interviews with former business acquaintances.