Donald Trump signed the 2020 law that authorized United States Semiquincentennial coinage for America250.
The relevant legislation was the Circulating Collectible Coin Redesign Act of 2020. It authorized commemorative circulating designs for the 250th anniversary of American independence, including a dime, five quarters, a half dollar, and a one-dollar coin. The law also addressed other coin programs, including American Women Quarters.
The act received unanimous support in both the Senate and the House of Representatives. Trump signed it in 2021, when he was president, a timing detail that can cause confusion because the law itself is named for 2020. The coinage is dated 2026 because that is the anniversary year.
This question separates three dates that are easy to blend together: Congress passed the redesign law in 2020, the president signed it in 2021, and the commemorative coins were intended for the 2026 semiquincentennial. Each date refers to a different stage of the program.