It’s possible that booksellers bought hundreds of copies at a time, but OTOH, Cruz made a number of personal appearances at book stores (and Costco, etc.) to do book signings. And HUNDREDS of people showed up to many of those signings. So I guess the NY Slimes could point to those buys as “bulk buys” but the books were sold to actual individual people who stood in line to meet Cruz.
My wife and I stood in one of those endless lines for Senator Cruz to sign our books. We were limited to only one copy each because the crowd was so large. No matter what the liberals say or do, the support for Cruz is real and growing.