President Joe Biden is poised to sign a “Made in America” executive order on Monday, seeking to increase purchases of products made in the United States, chiefly by tightening rules around federal procurement and giving the government a bigger role in supporting U.S. businesses. Biden’s action is meant to boost federal purchases of American-made goods by making it harder for federal agencies to buy imported products, including by raising local-content requirements, cracking down on waivers that allow exemptions to current Buy American Act rules, and creating a new senior role at the Office of Management and Budget to oversee the implementation of the new efforts. The White House said in a statement that Biden’s directive modifies the definition of American-made products, raising the domestic content threshold for a purchase to qualify under existing provisions of the Buy American Act, a law adopted in 1933 to require the government to prefer U.S.-made products in …