Most democrats scoff when I mention the power of the MSM bias. They say that the effect would be very small. But thats just it, it only takes a few percent of people (low information voters) to pull an election either way, and its these people who are easily influenced by the MSM. I'd say the pool of this type of voter is probably only 5-10%, but that is more than enough to make a wave.
Here’s the answer to the assertion that the media isn’t powerful.
Tell them if the media (print, electronic) isn’t able to sway hearts and minds, then why do advertisers pay billions of dollars every year to craft and deliver a message about their products and services to potential buyers?