The move comes after Trump’s first choice for the ambassadorship, Representative Elise Stefanik, withdrew her name from consideration after the Republican majority in the House of Representatives became too thin. Waltz’s departure from his national security adviser post along with his deputy, Alex Wong, was announced earlier on Thursday following several scandals in the past few months.

Most notably, in March, Waltz accidentally invited Atlantic editor-in-chief Jeffrey Goldberg to a private Signal chat where Secretary of Defense Pete Hegseth discussed attack plans against Houthi targets in Yemen. Later, Waltz was found to have left his Venmo account public, exposing associates including government officials and lobbyists. He was also exposed for having much of his personal data, including account passwords, cell phone numbers, and email addresses, listed online.

Along with Hegseth, Waltz used Signal frequently for work purposes, reportedly being part of at least 20 group chats to discuss issues in Ukraine, China, Gaza, the Middle East, Africa, and Europe. Privately, Trump was reportedly furious with Waltz’s missteps, but evidently not enough to push him out of the administration entirely.