In "Siege: Trump Under Fire," Michael Wolff highlights the controversy surrounding Hillary Clinton's emails, particularly the 33,000 messages she categorized as "personal" that went missing. This missing cache raised suspicions among several Republicans, including Steve Bannon, who believed that these emails could potentially reveal intricate details about the funding mechanisms behind the Clinton Foundation.
Bannon and others theorized that the emails might illustrate a connection between the Clintons' financial contributions to the Foundation and Hillary's influence while serving in the Obama administration. This suspicion suggested an intricate exchange of political favors and cash, deepening the scrutiny and attacks on the Clintons during a tumultuous period in American politics.