She seems to forget the regularity of sex scandals coming from both sides of the aisle every 2-4 years. Her prediction seems to echo that of Lyndon Johnson after the Civil Rights amendments ended the Democrat reliance upon Southern Democrats, except without the insight of how light the punishment is for this scandal. A generation by bum. I assure you, more sex is coming from both parties shortly. Soon enough, you won't be able to hear anything but "The Republicans can be so full of perverts." Of course, if another moronic radio show/talk show host makes a similar generational prediction after the next Republican wave, well, you would only need to see the ridiculousness of Maddow's comments for temporary sanity to prevail.
This is why it is good to step outside the realm of current events (news and its commentary are sometimes bad for you) to see that there was such things in the past, and that everything went along regularly after that.