We’re tracking the executive orders Trump signed on his first day in office, just hours after being inaugurated as president.

Trump’s actions ranged from withdrawing the U.S. from the Paris Agreement on climate to ending birthright citizenship. His steps both made it clear that he plans to hit the ground running during his second term in the Oval Office and that he aims to please his base, delivering on campaign promises made to his supporters.

Even presidential powers have their limits - and in some cases, Trump faces hurdles before his plans can become reality.