A lawyer for John Bolton slammed the leak of details from the former national security adviser’s upcoming book that have quickly rocked the impeachment case against President Trump.

Drafts of Bolton’s manuscript were shared with associates and the White House for a review process, and the New York Times reported on Sunday that Bolton wrote that he was told by Trump in August that a hold on nearly $400 million in congressionally approved military aid was tied to his efforts to pressure Kyiv into assisting with investigations into his political rivals, including former Vice President and presidential candidate Joe Biden. Bolton, Secretary of State Mike Pompeo, and Defense Secretary Mark Esper repeatedly pushed Trump to unlock the funds, which were released in September.