Gregory misspoke. Nixon wasn't impreached, he resigned in disgrace, the first and only president ever to do so. I'd think if Gregory's intention was to slam republican's he'd simply have stated the events as they occurred, which is more embarassing an indictment than the misstated event. After all, Clinton remained in office anyway, was impeached over a bj, and 60-70% (depending on polls) of citizens said he never should never have been impeached. The majority of citizens did feel Nixon should have resigned or else been impeached, and that was without even knowing the full extent of his crimes.
Per google I also don't see this story even on Fox News, only on the Hannity forums. Why isn't fox all over this "story" of liberal bias?