The Congressional Budget Office projects U.S. tariff changes will increase federal deficits by about $1.1 trillion over the next decade, after a Supreme Court ruling halted certain tariffs and the administration imposed new ones under different authority. The fiscal warning comes as USMCA renegotiations near, with advocacy groups calling for stronger labor and transparency rules and Canada objecting to U.S. tariffs it says breach trade commitments. These overlapping disputes signal heightened uncertainty for North American trade and economic policy.

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