Liberal women, feminists, and Hillary Clinton supporters tore into Women's March organizers on Thursday for their decision to have the decidedly male Vermont Sen. Bernie Sanders (I.) headline their 2017 convention.

Tamika Mallory, co-founder of Women's March, said on Wednesday night that Sanders was the right choice to headline the first National Women's Convention in 40 years. Not everyone agreed.

So… there were no women available … to open the womens convention…? https://t.co/m1QDj2KX4N — Joy Reid (@JoyAnnReid) October 12, 2017

Might just be me, but I'd have loved to see a woman keynote the Women's Convention. https://t.co/iwNrk8vG63 — Joan Walsh (@joanwalsh) October 12, 2017

This is really unfortunate.

Especially given Hillary was not invited to speak at the March.

What, were no women available to speak? Mistake! https://t.co/Zbg2wfnDLI — Amy Siskind (@Amy_Siskind) October 12, 2017

Pretty amazing. How did the WomensMarch not find any woman for this gig? Unfollowing https://t.co/vJJhB99KUa — Neera Tanden🖖🏼 (@neeratanden) October 12, 2017

This reminds me of that Parks and Rec Episode where a women's rights org. gives Ron Swanson an award for Leslie's work. https://t.co/Sz1k7Axclc — Lara Witt (@Femmefeministe) October 12, 2017

In a new twist for feminism, deemed "super-feminism," women will finally be able to sit down and let a man tell them what's important. https://t.co/xPhxdl5utm — Sady Doyle (@sadydoyle) October 12, 2017

Incredibly disappointed @womensmarch.You couldn’t find any inspiring, powerful, woman to give the opening speech? I can give u a long list. https://t.co/n8HvU1367Q — Debra Messing (@DebraMessing) October 12, 2017

A white dude is delivering the opening speech at the first women’s convention in 40 years. Such progress. Wow. https://t.co/WNmVznMo9K — 👻Imani Gandy👻 (@AngryBlackLady) October 12, 2017

Many critics questioned Sanders' feminist credentials, citing his criticism of Planned Parenthood, his support of pro-life Democratic candidates, and his campaign against Clinton.

Awful. The man did everything in his power to hamstring first female nominee. After he'd lost, called her "not qualified." https://t.co/4MH8HFaJYX — Tom Watson (@tomwatson) October 12, 2017

Choosing a MAN to give the OPENING SPEECH at a #WomensConvention? A man who villified a woman many respect? Hard pass, @womensmarch. Wow. https://t.co/y7bTnCA7CD — leah mcelrath 🗽 (@leahmcelrath) October 12, 2017

Trump being POTUS, Bernie heralded at a #WomensConvention while Hillary is bashed in the press about #HarveyWeinsten is 2016 in a nutshell. — Peter Daou (@peterdaou) October 12, 2017