Melania Trump questions Trump assassination attempt story: 'We need to uncover the truth'

• Former first lady Melania Trump in a new social media video post questioned the official account of the attempted assassination of Republican presidential nominee Donald Trump, her husband.
• Melania Trump's post on X promoted the release of her new memoir, "Melania."
• Thomas Crooks, who had fired at Donald Trump and others at a campaign rally in Pennsylvania in July, was killed by the Secret Service during the incident.

Former first lady Melania Trump questioned the official account of the attempted assassination this summer of her husband, Republican presidential nominee Donald Trump.

Speaking in a dramatically produced 30-second video, posted to social media Tuesday to promote her new memoir, Trump argues there is "definitely more to the story."

She refers specifically to the failure of law enforcement to arrest the shooter Thomas Crooks before the near-fatal shooting of Donald Trump at a campaign rally in western Pennsylvania.

"The attempt to end my husband's life was a horrible, distressing experience," she says on the video. "Now the silence around it feels heavy."

"I can't help but wonder, why didn't law enforcement officials arrest the shooter before the speech?" she said. "There is definitely more to this story, and we need to uncover the truth."

The video ends with an image of her new book, "Melania," and a link to buy copies of it. The book is being released the second week of October.

CNBC has reached out to Donald Trump's campaign to request comment on the statement by his wife, which was posted online hours before her husband was due to debate Vice President Kalama Harris, the Democratic presidential nominee, in Philadelphia.

The Secret Service, which protects Donald Trump and other former presidents, has