Gee wonder if there is any reason why they would be beating the “Trump can’t beat Hillary drum”. Because they desperately don’t want Trump facing off on Hillary. It will be a very ugly campaign and she won’t have the stamina to go the length against the withering attacks of Trump. Of course she’ll have the media on her side, but we’ve seen how ineffective that’s been on Trump. That’s why they don’t want him to be the nominee against Hillary.
For anyone asking "How can Trump beat Hillary in PA (NY, MA, NH)" the answer is "By totally destroying her." I can easily envision a debate where Trump drives Hillary into a shrieking harpy meltdown live, the whole world watching the Wicked Witch of the West Wing collapse into a puddle of her own evil.