Sen. Cory Booker (D-N.J.) says Democratic presidential front-runner Hillary ClintonHillary Diane Rodham ClintonBudowsky: Closing message for Democrats Election Countdown: Dems outraise GOP in final stretch | 2018 midterms already most expensive in history | What to watch in second Cruz-O'Rourke debate | Trump raises 0M for reelection | Why Dems fear Avenatti's approach GOP mocks Clinton after minor vehicle collision outside Mendendez campaign event MORE faces an unfair level of scrutiny.

“First and foremost, I’m a little frustrated by this,” Booker told host Alisyn Camerota on CNN’s “New Day" on Wednesday. "Let’s stop putting her up to a higher standard.

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“A lot of these things people are throwing at her are distractions from the core issues. What is your plan for the American people, and how realistic is it in this time of urgency? How are you going to move the bar?”

Booker said Clinton has faced unfair criticism going back years.

“Even when I was supporting Obama back in 2008, I saw her treated in a different way,” he said.

“[There was] a different standard for her, different levels of vetting, different levels of examination, even articles criticizing what she was wearing and her hair that I didn’t see for other candidates in the race,” Booker added.

“I’ve seen things thrown at her as secretary of State, watching [what] the Republicans have done to her, putting her through hours and hours of hearings. Those things were never done under similar circumstances in other administrations.”

Clinton on Tuesday said she faces a standard for releasing transcripts of her past paid speeches that other White House hopefuls do not.

Rival Bernie SandersBernard (Bernie) SandersFive takeaways from Cruz, O'Rourke's debate showdown Live coverage: Cruz faces O'Rourke in Texas debate showdown Saudi mystery drives wedge between Trump, GOP MORE jabbed at Clinton later Tuesday by noting he has no paid Wall Street speeches to reveal.