; and (B) may proclaim such modification or continuance of any existing duty, such continuance of existing duty free or excise treatment, or such additional duties as the President determines to be required or appropriate to carry out that trade agreement. (2) Congressional approval The President shall seek approval from Congress to enter into a trade agreement under this subsection. (b) Agreements regarding tariff and nontariff barriers (1) Agreements (A) In general Whenever the President determines that one or more existing duties or any other import restriction of an Americas partner country or the United States or any other barrier to, or other distortion of, international trade unduly burdens or restricts the foreign trade of the United States or adversely affects the United States economy or the imposition of any such barrier or distortion is likely to result in such a burden, restriction, or effect, and that the purposes, policies, priorities, and objectives of expanding the USMCA to include that country will be promoted thereby, the President may enter into a trade agreement described in subparagraph (B). (B) Trade agreement described A trade agreement described in this subparagraph is a trade agreement with an Americas partner country or Americas partner countries providing for— (i) the reduction or elimination of a duty, restriction, barrier, or other distortion