ABC News reported that it “uncovered errors” in Peter Schweizer's upcoming anti-Clinton book, Clinton Cash. Schweizer has a long history of sloppy research and reporting -- earlier this week, ThinkProgress revealed that the conservative author cites a hoax press release in the book.

On April 23, ABC News explained that their independent review of the source material used for Clinton Cash “uncovered errors in the book, including an instance where paid and unpaid speaking appearances were conflated.” The book purports to reveal connections between Hillary Clinton's time as secretary of state, donations to the Clinton Foundation, and paid speeches given by the Clintons, but Schweizer reportedly admits in the book he cannot prove his allegations.

According to ABC, Schweizer “said the errors would be corrected.” The book is due for release on May 5; it is unclear whether the errors will be corrected before the first publication.

Media Matters identified ten previous instances in which Schweizer made serious factual errors, issued retractions, or relied on questionable sourcing.