Resurrecting the zombie here, four months on, with the definitive answer to the OP’s question: this is why.
There were exactly two cases of US-acquired Ebola, and no fatalities. Despite neverending coverage on Fox (an average of eleven stories a day about how we were all doomed), things came out exactly how the “liberal biased” news said it would. None of the cases were among the general public, despite all of the news about how these asymptomatic people had come into contact with millions! The nurse with no symptoms who was forced into partial quarantine (and was widely criticized for not accepting a full one) didn’t infect anybody, either, just like that evil liberal “medical science” said she wouldn’t.
So to conclude: science works for everybody, “liberal” or not. If you still believe scientific questions can be correctly answered by political positions, come on over to the liberal side instead, where we use evidence. We’ve got cookies.