Earlier on Thursday, Trump said Obama had given away “classified information” when he said aliens were “real” during a podcast interview over the weekend.

President Donald Trump has shared a post indicating that he has directed government officials to identify and release files related to aliens and extraterrestrial life.

“Based on the tremendous interest shown,” Mr. Trump wrote on social media, he had directed officials to “begin the process of identifying and releasing Government files related to alien and extraterre...