The former Maryland governor is considering a long-shot bid for the White House in 2016.
The committee allows Carson to start directly fundraising for a White House run.
A spokesman argued her actions are not unique.
The GOP might be able to take a tougher approach in its battle against Clinton.
Report: Her official correspondence wasn’t immediately backed up on government servers.
Several Democratic House members are eyeing the seat while GOP hopes to make it competitive.
During oral arguments the court appeared skeptical of such a commission in place in Arizona.
The controversial 2012 GOP Senate nominee now says he won't challenge Sen. Roy Blunt (R-Mo.).