Donald Trump badly wanted to be the president who sent Americans back to the moon.

Instead, his administration has presided over Artemis, a lunar-landing program plagued by ¡°uncertain plans, unproven cost assumptions, and limited oversight,¡± according to a new watchdog report. Pieces of the program, including the SLS rocket and Orion spacecraft, are billions of dollars over budget, years past deadline and poised to eat into NASA¡¯s more promising projects.

As a result, the U.S. space agency will almost certainly miss its goal of landing Americans on the moon again by 2024.