Sure, but as others have said, you have device IDs, you have when Trump was traveling and using cellular data, etc. So there is a huge amount of info that can b

Sure, but as others have said, you have device IDs, you have when Trump was traveling and using cellular data, etc. So there is a huge amount of info that can be used to relate accounts. Legally, it seems asking for a company to run essentially joins across their DB tables is accepted practice. Otherwise, how could warrant be obtained from google for all devices within a specific geolocation? Requires at least a few DB queries I'd imagine.