Attorneys for Annette Simmons are expected to argue Wednesday before a Dallas County probate judge to have the will's contents blocked from public view.
Simmons was an East Texas native who rose from poverty to head a sprawling corporate empire with interests ranging from energy to nuclear waste dumps. He donated hundreds of millions of dollars to charitable causes. He was also well-known in the political world for his funding of Republican and conservative campaigns.
He bankrolled the 2004 ads questioning Democratic presidential nominee John Kerry's Vietnam War service. Four years later, he funded ads attacking Democratic presidential nominee Barack Obama.