That is true. X=150 under the 1977 International Emergency Economic Powers Act, which is the authority under which Trump is establishing the tariffs. After 150 days, someone could file a lawsuit to reverse the tariffs if there has not been any vote.
"None of these trade provisions empowers Mr. Trump to impose tariffs on all imports from all countries based on an arbitrary formula. Section 122 lets a President impose tariffs of up to 15% in response to trade deficits, but Congress must approve them after 150 days. Someone should sue to block his abuse of power."
"None of these trade provisions empowers Mr. Trump to impose tariffs on all imports from all countries based on an arbitrary formula. Section 122 lets a President impose tariffs of up to 15% in response to trade deficits, but Congress must approve them after 150 days. Someone should sue to block his abuse of power."
Source: https://www.wsj.com/opinion/donald-trump-tariffs-disturbance... (https://archive.ph/l2272)