The lawmakers' letter gives Jassy "a final opportunity" to provide evidence to corroborate the company's prior testimony and statements. It also notes that "it is criminally illegal to knowingly and willfully make statements that are materially false, conceal a material fact, or otherwise provide false documentation in response to a congressional investigation."

It gives the CEO until Nov. 1 to provide a sworn response to clarify "how Amazon uses non-public individual seller data to develop and market its own line of products" and how Amazon's search rankings favor those products.