(ROLLCALL) — Two days into his official campaign, newly nominated Libertarian presidential candidate Gary Johnson is already presenting a potential upset in what has been a hugely unpredictable election year.

Johnson, a former governor of New Mexico, said during a CNN interview Tuesday that his campaign would offer “the best of both worlds” between two unusually unpopular rivals . He also promised to campaign hard against presumptive Republican nominee Donald Trump, a vow he sealed by blowing a kiss.

Several polls suggest that Democratic front-runner Hillary Clinton also has reason to be concerned. Recent surveys by Morning Consult, Fox News and Monmouth University showed Johnson would win 10 or 11 percent in a three-way race with Clinton and Trump. Almost half of all voters say they’d consider a third-party candidate if their choices are Clinton or Trump, according to Slate.com.

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