For they've just made clear that the Keystone pipeline will not need to use American steel in its construction. And if American steel is the best to use then use that, if not American is better then use that instead. Trump said as recently as last week that Keystone and the Dakota Access pipeline must use American steel "or we're not building one." If China has been illegally subsidising that pipeline steel then the case is even stronger. There should therefore be no insistences on using American steel in any pipeline, not just this one.
Source: Forbes March 04, 2017 12:25 UTC