Ehh. Sort of. Congress can investigate anything they want - the thinking is that this power is necessary to effectively legislate and conduct oversight. The b

Ehh. Sort of. Congress can investigate anything they want - the thinking is that this power is necessary to effectively legislate and conduct oversight. The ban came from the executive branch. Nobody has a right to bring anything they want into the country. Wether you’re a citizen returning from vacation in Tahiti, or ZTE, you need permission. This ban is removing everyone’s permission to bring this stuff into the country.