Ron Paul on Tuesday vowed he would not support Bernie SandersBernie SandersMSNBC's Chris Matthews confuses South Carolina Democratic Senate candidate with GOP's Tim Scott Trump surveys South Carolina supporters on preferred Democratic opponent Watch live: Trump holds a rally in South Carolina MORE’s White House run because of the Democratic presidential candidate’s similarities with Donald TrumpDonald John TrumpTrump endorses former White House physician Ronny Jackson for Congress Newly released emails reveal officials' panic over loss of credibility after Trump's Dorian claims Lindsey Graham thanks Trump, bemoans 'never-ending bull----' at South Carolina rally  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 ClintonWatch live: Trump holds a rally in South Carolina On the ground at CPAC: Republicans see Sanders as formidable foe Home state candidates risk losing primaries 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 PaulHillicon Valley — Presented by Facebook — Federal court rules tech giants can censor content | Trump upends surveillance fight | Senate passes bill barring federal funds for Huawei equipment Trump upends controversial surveillance fight Former impeachment managers clash over surveillance bill 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.