President Donald Trump signed a bevy of executive orders within hours of taking the oath of office on Monday — including one that attempts to end birthright citizenship, which has long been guaranteed under the Constitution.

Donald Trump’s first day in office was eventful, with the new president signing more than 20 executive orders covering a range of topics from gender and TikTok to immigration and environmental regulation.

President Donald Trump signed a historic number of executive orders on Day 1. Here’s what he did, and how it reflects his goals for the economy and more.

“Protecting the Meaning and Value of American Citizenship”—better known as the birthright citizenship executive order —attempts to cancel the 14th Amendment to the US Constitution. Getting rid of constitutional amendments via executive order is new, and, for me at least, “the worst.”

Liberal groups hope the conservative Supreme Court will reverse Donald Trump’s birthright citizenship order True to his word, President Donald Trump, with the stroke of his pen, upended more than a century of legal precedent with this declaration: “The privilege of United States citizenship does not automatically extend to persons born in the United States.