If the GOP's baffled establishment wants to take down Donald Trump, it appears they'll have to do it themselves.
Democrats who specialize in opposition research are holding their fire, quietly pleased the brash real estate mogul and reality TV star has become the face of the modern-day GOP.
Meanwhile, some leading Republicans have grown increasingly concerned by Trump's staying power.
That's led some to call for an organized takedown campaign to protect the party's image heading into 2016.
Meanwhile, the real estate mogul is attacking the party's other 2016 prospects one by one. Trump has engaged in a particularly aggressive war of words with former Florida Gov. Jeb Bush.