Bill is off. From most political polls, we know that 30% are liberal nutcakes. The media delivers 8%. Dead bodies deliver another 5%. Illegal immigrants deliver another 5%. Winning requires another 3% through ballot tampering.
Larry Sabato agreed with OReilly that there is a lot of bias in the media, but said he was exaggerating the impact on undecided voters.
If I recall correctly Sabato said it’s more like 1%.