Over the past year, she empaneled a grand jury and fought court battles to ensure testimony from Gov.
Two other high-profile witnesses who fought grand jury subpoenas, Mark Meadows and Newt Gingrich, have their cases before appeals courts.
A regular grand jury, which sits for two months, would probably move swiftly, Carlson said, since it would have all the evidence painstakingly compiled by the special grand jury.
"The reason it'll go very fast is the regular grand jury will have a transcript from the testimony of a laundry list of witnesses that have already testified to the special grand jury," Carlson said.
The case in Georgia, Carlson pointed out, is especially potent because of how uniquely strong the evidence is and how reliable the witnesses would be.