1. The enemy of my enemy is my friend. Chances are everyone in Washington you hate is outraged by Trump's momentum. The stops the establishment is pulling out in attempt to destroy the Trump campaign are set up to backfire: As a whole, the establishment is a greater evil to the american voter than a billionaire with bad hair.
2. America is not ready for a female president. It isn't fair, it isn't right, but the reality is that the instinctive and primal nature of human beings still gravitates towards a male leader. Advantage Trump.
3. Publicity. Trump is controversial and dominates airtime. He was recently featured on the cover of time magazine and the election is still half a year away. From start to finish, Trump will continue to dominate all forms of publicity.
I am not a Trump fan, but as a gambler these are the three points that keep me from putting any money down on a Clinton victory.