Probably cause he ignored her. I'm sure he'll see her only as a smear to his perfect campaign (like Peter). And not just the fact she's an "illegitimate daughter" but he'll probably hold the power thing against them too.

Yeah I'm thinking you're right on the money with that one. I can't remember what his exact words were to Isaac now LOL all I remmeber is him saying mommy was dead hence why I went.. "Er... WHAT? HOW?" at the spoiler. But anyways... it's kind of sad really, because I would have liked it to be HRG to show there really was a reason why he was so passionate about her safety.