Ron Paul on Tuesday vowed he would not support Bernie SandersBernard (Bernie) SandersOvernight Finance: Treasury mulls sanctions relief for Russian aluminum firm | Trump floats tying NAFTA talks to border security | 14 states hit record-low unemployment Kamala Harris will no longer accept corporate PAC money Judd Gregg: Who wins with Paul Ryan's departure? MORE’s White House run because of the Democratic presidential candidate’s similarities with Donald TrumpDonald John TrumpRand's reversal advances Pompeo New allegations could threaten Trump VA pick: reports President Trump puts on the pageantry for Macron’s visit MORE.

“No, because he’s an authoritarian,” he said when asked if he’d back the independent Vermont senator on “CNN Newsroom."

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“He’s just a variant of Trump,” the former Texas representative added. "Even the things I worked with on Bernie, some of the foreign policy, he’s a part of the military industrial complex.

“He was a big voter for militarism. He’s an authoritarian of a different color, but Trump’s a super authoritarian. Trump wants to be the boss.”

Paul also argued that Democratic presidential front-runner Hillary ClintonHillary Diane Rodham ClintonOvernight Defense: Pompeo clears Senate panel, on track for confirmation | Retired officers oppose Haspel for CIA director | Iran, Syria on agenda for Macron visit George H.W. Bush in intensive care GOP chairmen say they have deal with Justice on documents MORE does not present voters with a better option than Trump, her Republican counterpart.

“My biggest beef is that from a libertarian viewpoint there’s no meaningful difference between Hillary and Trump,” said Paul, who sought the GOP presidential nomination in 2008 and 2012.

“I mean, they both support the military industrial complex, the Federal Reserve, deficits, entitlements, invasions of privacy,” he added.

“It is super-nationalistic populism versus socialism. That is so remote from what we need to be doing. We need to be moving ourselves away from tyranny towards liberty.”

Sen. Rand PaulRandal (Rand) Howard PaulRand's reversal advances Pompeo Overnight Defense: Pompeo clears Senate panel, on track for confirmation | Retired officers oppose Haspel for CIA director | Iran, Syria on agenda for Macron visit After Dems stood against Pompeo, Senate’s confirmation process needs a revamp MORE (R-Ky.), Ron Paul’s son, suspended his presidential campaign on Feb. 3 after a poor showing in Iowa’s first-in-the-nation caucuses.

Clinton and Trump are now leading their party’s respective primaries before multiple voting contests nationwide on Super Tuesday.

Trump leads the Republican field by nearly 16 percent, according to the latest RealClearPolitics average of polls. Clinton, meanwhile, possesses a roughly 10-point edge over Sanders, her sole competition for the Democratic mantle.