Tallahassee, Florida (CNN) To Donald Trump's supporters, the real estate mogul-turned-presidential candidate is a refreshing reprieve from politics-as-usual, a man who shuns political correctness and the status quo.

To Rick Wilson, a longtime Republican political consultant who has spent the past few months waging war on Trump's candidacy, The Donald is something else entirely. In Wilson's words, Trump is a "cancer," an "epic douche canoe," a "statist" with "a little delicious hint of fascism in the mix" whose presidential nomination will spell apocalypse for the Republican Party.

And that's just the printable stuff.

The rise of Trump has many in the Republican establishment screaming that his nomination would spell disaster for the party in 2016. Perhaps the loudest screamer is Wilson. Since Trump took the lead in the Republican presidential primary, Wilson has embarked on a personal and professional crusade to convince conservatives that Trump is not one of them.

"He's an existential risk, not only to the conservative movement, but to the Republican Party," Wilson told CNN. "We have reached a point now where we could abandon or lose limited-government conservatives for a generation if we replace it for this statist nationalism and Trumpism as a doctrine for our party."

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