That one was much earlier, at that time the media was dominated by the Conservatives. Shoot, Kennedy would have been thrown out of the Party or sidelined like Zell Miller, he would simply be considered too conservative for y'all.
It was the late 60s and early 70s where that was taken over by the Liberals... College indoctrination appears to work. Anyway, it's been a long time with a Media that was dominated by Liberal views, then the "Fairness Doctrine" was repealed and suddenly another view began to emerge. Now both views are spread about on many different channels, we get information and views from more than just the one side's lean. It's an amazing thing this actual Free Speech.