Former Gov. Howard Dean (D-Vt.) said Friday that Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.) should not boast about his freedom from super-PACs given his ties with organized labor.

“I don’t hear anybody asking Bernie Sanders for transcripts of some speech he made for a labor union,” he told host Andrea Mitchell on “MSNBC Live."

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“For Bernie to say he doesn’t have a super-PAC…labor unions are super-PACs. Labor unions are super-PACs Democrats like so we don’t go after labor unions.”

Dean then criticized Sanders for implying Clinton is in the pocket of Wall Street after giving paid speeches for major financial firms in the past.

“This is a double standard,” said Dean, the former chairman of the Democratic National Committee. "Why should Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE have to put up with a double standard? I am tired of the attacks on her personal integrity.

“If Bernie Sanders wants to attack Hillary Clinton’s integrity, that’s up to him, Dean added. "[But] I think that’s a mistake.

Clinton and Sanders fiercely sparred over the latter’s former ties with Wall Street during Thursday night’s fifth Democratic presidential debate.

The former secretary of State pledged she would “look into” releasing transcripts of past remarks for Goldman Sachs during the contest. She nonetheless commanded that Sanders end the “artful smear” that she is “bought” by the financial sector.

The pair is currently locked in a heated battle for the Democratic presidential nomination.

Clinton won the first victory last Monday night with success in Iowa’s first-in-the-nation caucuses. Sanders, meanwhile, hopes to strike back with his own triumph in New Hampshire’s primary next Tuesday.

He leads the former first lady by about 18 points there, according to the latest RealClearPolitics average of polls.