There is no credible evidence that Pamela Bondi is reopening any case or investigation regarding whether the Confederacy actually lost the Civil War.
Pamela Bondi is reopening the case of if the Confederacy actually lost the war.

FactVerify
Source: factverify.com
Key Evidence
No credible sources report Pamela Bondi reopening any case related to the Confederacy or Civil War history.
Historical consensus and documentation confirm the Confederacy’s defeat as an established fact.
en.wikipedia.orgen.wikipedia.orgLost Cause of the Confederacy
theatlantic.comtheatlantic.comWhy Confederate Lies Live On
Bondi’s recent public activities focus on legal reviews unrelated to Civil War history.
abc7news.comabc7news.comAG Pam Bondi in San Francisco visiting Alcatraz to announce Trump admin's...
What the Evidence Shows
The input claim suggests that Pamela Bondi, a former Attorney General, is reopening a case about the outcome of the American Civil War, specifically questioning if the Confederacy actually lost. This claim can be broken down into two components: first, that Pamela Bondi is involved in reopening a case; second, that the case concerns the historical fact of the Confederacy's defeat. Extensive recent and historical sources show no indication that Bondi has taken any such action.
Instead, available information about Bondi focuses on her roles related to legal matters such as reviews of Trump-related cases, Jeffrey Epstein investigations, and other Department of Justice activities.apnews.comapnews.comNew Attorney General Pam Bondi orders review of Trump cases as she takes over... There is no mention in credible news or official records of her engaging with Civil War historical revisionism or reopening any legal or historical inquiry into the Confederacy's defeat.
Furthermore, the historical fact that the Confederacy lost the Civil War is well-established and not subject to legal reopening; it is a settled historical event documented by overwhelming evidence.en.wikipedia.orgen.wikipedia.orgLost Cause of the Confederacy
theatlantic.comtheatlantic.comWhy Confederate Lies Live On The claim appears to conflate or misinterpret unrelated news about Bondi’s activities with a false narrative about Civil War history. Given the absence of any supporting evidence and the implausibility of such an action by a former Attorney General in recent times, this claim is false.