Former FBI chief and special counsel Robert Mueller will not testify Tuesday before a House Oversight Committee hearing on the Jeffrey Epstein document saga due to Parkinson's disease.

The former special counsel was diagnosed with Parkinson’s disease four years ago, Mueller's family told the New York Times in a statement on Aug. 31.

The former special counsel, who led the Russia investigation during President Trump’s first term, has had difficulty speaking in recent months. A congressional committee dropped a…