First a disclaimer: no one is knocking phone sex or the insertion of sex tools into the rectum by geriatrics, per se. It's imposing this behavior on an unwilling partner young enough to be his granddaughter that is offensive to the civilized senses, especially when this is literally the man who sets the tone for right-wing morality in America.
Murdoch knows she is a straw candidate, and straw burns easily. After the primaries, he will support the Republican presidential candidate just as he always has, with the usual rabid devotion. He hasn’t done the Democrats any favors, he’s pushing the candidate that he knows his party can easily beat.