Rep. Scott RigellEdward (Scott) Scott RigellGOP rushes to embrace Trump GOP lawmaker appears in Gary Johnson ad Some in GOP say Trump has gone too far MORE (R-Va.) urges voters to shun Hillary ClintonHillary Diane Rodham ClintonThe Hill's Morning Report — Trump and the new Israel-'squad' controversy Colorado candidates vying to take on Gardner warn Hickenlooper they won't back down Trump seeks to project confidence on economy at New Hampshire rally MORE and Donald TrumpDonald John TrumpWarren unveils Native American policy plan Live-action 'Mulan' star spurs calls for boycott with support of Hong Kong police Don't let other countries unfairly tax America's most innovative companies MORE in a new ad for Libertarian presidential nominee Gary JohnsonGary Earl JohnsonTrump's GOP challenger: 'I may be reduced' to debating Alec Baldwin Amash won't rule out Libertarian challenge to Trump Buzz grows Amash will challenge Trump as a Libertarian MORE.

“I’m a lifelong Republican, but I’m not voting for Donald Trump and I’m certainly not voting for Hillary Clinton,” Rigell says in the online video released Friday.

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“I don’t trust the Republican nominee, Donald Trump, and I don’t trust the Democratic nominee, Hillary Clinton,” adds Rigell, a retiring three-term lawmaker.

"I do trust — not only with my future, but my children’s and grandchildren’s future — Gov. Gary Johnson to lead our great country.”

Rigell, who remains Johnson's only supporter in Congress after endorsing him in August, argued the former Republican's two terms as governor of New Mexico offer proof Johnson would practice bipartisan cooperation and limited government as president.

“Gary Johnson is the real deal,” Rigell said. "Gary Johnson is a proven leader. And as a Republican governor in a Democratic-leaning state, he was reelected because he got the job done.

"He led his state, and he actually reduced the size of government. That’s important to me as a fiscal conservative Republican.”

Rigell said voters should not automatically vote Democratic or Republican on Nov. 8.

“We don’t have to live this way,” he said. "We don’t have to govern ourselves this way as Americans. We can change things. We can change the system.

“The two national parties have given us two candidates that are deeply flawed, and, I believe, not qualified, in judgment and temperament and in character, to hold our nation’s highest elective office,” Rigell added.

“But we don’t have two choices. We have a third choice, a better choice. And I believe that something different, that something better, is voting for Gary Johnson.”

The Libertarian ticket of Johnson and running mate Bill Weld hovers around 6 percent nationwide in the latest RealClearPolitics polling index.

Clinton leads Trump by 6 points nationally in a matchup that includes third-party candidates, according to the polling index.