No. They started long before that.
They covered for FDR, JFK, LBJ, the Kennedy family in general, Slick Willy, etc.
They covered up FDR's disability and affair, but not WWII.
They covered up JFK's disabilities and affairs, but not Bay of Pigs.
The covered up LBJ affairs, but not Vietnam.
Since Obama, they blacked out everything, and twisted the news to try to blame everything on Republicans.
-PJ