Senators pressed the tech giant on the scope and scale of its digital advertising business. Republicans repeated long-running allegations of conservative bias.
The CEOs tell Congress that the giant American tech companies do not stifle competition, saying the concern that too much power is concentrated in too few companies is unfounded.
The first congressional testimony by Jeff Bezos comes at a time when he and Amazon are seeming at their zenith, occupying ever-growing space in American culture.