Does your mom know you talk like that? And how on earth does Meghan's weight or appearance rebut or refute or reflect on her opinions (whether right or wrong)? Aren't you just admitting that you are too lazy to think up an argument or a thoughtful response?
That civil war between the moderate-liberal GOP establishment and conservatives is sounding pretty quaint and passé now. It's clear that mod-libs could disappear from the party tonight and conservatives would still gladly tear each other apart.
Meghan McCain supports her dad and people like him. That's to be expected of a daughter. Overall, so far as I can see, she's been well-behaved in this election cycle, and really doesn't merit abuse. Is there anything that she's said or done now or in the past that's as bad as what you see about her?
You got yourself a real case of premature exasperation.
Work on it.