Story highlights Conservative blogger Erick Erickson says he's seeking a third-party presidential candidate

His push comes as some anti-Trump Republicans back out of attending the convention in Cleveland

Washington (CNN) Conservative blogger and radio host Erick Erickson said Wednesday he's had a number of conversations about laying the groundwork for a third-party candidate to oppose Donald Trump and Hillary Clinton in the general election.

Erickson, a leader of the #NeverTrump movement, told CNN that he plans more such conversations in the coming days, and that the consensus among anti-Trump conservatives is that voters who won't support Trump or Clinton need another option.

"Donald Trump cannot consolidate the Republican base and many Republicans cannot accept a Hillary Clinton donor as the Republican nominee," Erickson said. "If the delegates ratify this madness in Cleveland, many of us will look elsewhere for a credible candidate to oppose both Trump and Clinton."

He added: "We will begin now laying the groundwork for an exit strategy from Donald Trump's Republican Party."

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