You're right. The USMCA, the CUSMA, applies to a huge swath of the economy, but government procurement, infrastructure, government dollars on infrastructure is a different thing. If you're providing steel to American inputs, you get tariff-free access to the U.S. under the trade agreement, but if you're talking about a state or local government that's getting funding from the U.S. federal government on infrastructure, that's when these buy local, buy American provisions come in.
To your original question, it's very much the same fight that we've been having for generations.