 She needs to answer those questions, and we thought we might have a chance to discuss them with her last night. Instead, she chose to run away. Cheeto will testify before lawmakers this Monday. Online spending in the U.S. surged 11 percent year over year to $14.2 billion during Amazon's 48-hour Prime Day event. That is according to Adobe Analytics. These figures not only top estimates but also set a spending record for the retail giant's two-day event.