Late Tuesday night, a female United States Senator — Elizabeth Warren Elizabeth WarrenNo new taxes for the ultra rich — fix bad tax policy instead Democrats back away from quick reversal of Trump tax cuts It's time for newspapers to stop endorsing presidential candidates MORE from Massachusetts — was told to shut the hell up by the all-male Republican Senate leadership.

Really. She was. And in so doing, the Republican Party continued to cement its image as an out-of-touch party that holds unacceptable misogynistic, sexist and racist views.

This is bad enough on its face, but it is also an unsustainable situation for the long-term political sustainability of a major political party in a country that is becoming browner by the minute and where women are the majority.

It happened late in the evening as the Democrats were holding the Senate floor for 24 hours to highlight to the American people what a poor choice Senator Jeff Sessions Jefferson (Jeff) Beauregard SessionsTrump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status White House officials voted by show of hands on 2018 family separations: report MORE (R-Ala.) is for the powerful position of United States Attorney General.

Sessions was nominated by President Trump, despite a career that at times has been hostile to civil rights, voting rights, women’s rights, immigrants, and the LGBTQ community.

I spoke out about @SenatorSessions – until @SenateMajLdr McConnell decided to silence me. https://t.co/qbty7x0iLl — Elizabeth Warren (@SenWarren) February 8, 2017

Democrat after Democrat talked about Sessions’ abysmal record on protecting the rights of minority communities in several situations, and brought up the fact that the U.S. Senate had already rejected Senator Sessions when he was up for a federal judgeship years earlier, because of precisely this dreadful record.

When it was Warren’s turn, she used some of her time to read out loud a 1986 letter from Coretta Scott King, the widow of Civil Rights icon Martin Luther King Jr. and a renowned leader and icon in her own right.

King had written the letter to the U.S. Senate opposing the appointment of Sessions to a federal district judgeship based on his conduct as U.S. Attorney of the Southern District of Alabama. She wrote, “Mr. Sessions has used the awesome powers of his office in a shabby attempt to intimidate and frighten elderly black voters. For this reprehensible conduct, he should not be rewarded with a federal judgeship.”

I will not be silent while the Republicans rubber stamp an AG who will never stand up to the @POTUS when he breaks the law. — Elizabeth Warren (@SenWarren) February 8, 2017

King’s opposition along with that of many others at the time was enough to derail Sessions’ appointment.

So who in their right mind would think it inappropriate for a United States Senator to read such a compelling letter that had already been part of the historical record in a past vetting and review of Senator Sessions’ public conduct? Especially when that letter so eloquently described the harm that Sessions could do in an even more powerful position such as the one he is currently nominated for?

Republican Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll The Hill's Campaign Report: Biden asks if public can trust vaccine from Trump ahead of Election Day | Oklahoma health officials raised red flags before Trump rally MORE silenced Senator Warren under an obscure Senate rule – number XIX – that states that no senator can impugn the motives and conduct of another Senator.

Translation, if u have a vagina, can't criticize a Senator: @GOP Senators Vote to Formally Silence Elizabeth Warren https://t.co/B6qBJ1OHjr — Maria Cardona (@MariaTCardona) February 8, 2017

Who really knows what “strategy” McConnell was following when he reprimanded and silenced Senator Warren under this Senate rule?

But we do know four things happened:

It gave much more attention, coverage and importance to Senator Warren’s testimony precisely because she was silenced in such a public way. Afterward, she read the letter on a Facebook Live post that has received millions of views, and the hashtags #LetLizSpeak and #SheWasWarned were trending with her supporters sharing pictures of Rosa Parks, Harriet Beecher Stowe and Mother Theresa.

If McConnell had simply let her speak her piece at night on C-SPAN, no one would be talking about this today. It was a huge fumble from a strategic messaging standpoint for Senate Republicans.

It exposed the breathtaking hypocrisy of the male-dominated U.S. Senate, leading to charges that Republicans continue to brand themselves as misogynistic, sexist and racist.

Where was the reprimand when in 2015 Senator Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE blatantly called Senator McConnell a liar several times over on the Senate floor? Where was the reprimand when Senator Tom Cotton Tom Bryant CottonLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list Cruz says he wouldn't accept Supreme Court nomination MORE described Senator Harry Reid Harry Mason ReidSenate Republicans signal openness to working with Biden Mellman: The likely voter sham Bottom line MORE as “cancerous leadership?”

This gave way to the distinct impression that Senator Warren was being reprimanded not so much because of what she was saying but because she was being effective – and because she was a woman, reading a scathing letter from a Civil Rights legend who just happened to be an African-American woman. If this doesn’t reek of misogyny, sexism and racism, I don’t know what does.

It will serve to further motivate the Democratic base, progressives, independents, women, minorities, the LGBTQ community, immigrants’ rights activists, and other normal everyday Americans who are so incredibly concerned and many even downright scared that our nation is led by an out-of-control White House and President who thinks he is above the law.

Tellingly, the day after this happened, Democratic Senators Jeff Merkely of Oregon, Tom Udall Thomas (Tom) Stewart UdallOVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Senate Democrats demand White House fire controversial head of public lands agency OVERNIGHT ENERGY: Trump extends Florida offshore drilling pause, expands it to Georgia, South Carolina | Democrats probe Park Service involvement in GOP convention | Sanders attacks 'corporate welfare' to coal industry included in relief package MORE of New Mexico and Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE of Vermont, incensed that their colleague had been silenced, both read from the Coretta Scott King letter, uninterrupted. This further underscoring the double standard in the GOP, male-dominated United States Senate.

Unfortunately for the country, Sessions will still be confirmed as Republicans do not have the spine to stand up to President Trump — even on nominees that are so out of the mainstream of where most Americans stand on civil liberties, social justice and protecting all communities.

(Two exceptions: I give huge kudos to GOP Senators Lisa Murkowski Lisa Ann MurkowskiGOP ramps up attacks on Democrats over talk of nixing filibuster OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House Democrats tee up vote on climate-focused energy bill next week MORE and Susan Collins Susan Margaret CollinsThe Hill's Campaign Report: Biden asks if public can trust vaccine from Trump ahead of Election Day | Oklahoma health officials raised red flags before Trump rally Gideon leads Collins by 12 points in Maine Senate race: poll Senate leaders quash talk of rank-and-file COVID-19 deal MORE who voted “no” on the awful nomination of Betsy DeVos as Education Secretary. Thank you, ladies!)

But it will be done with yet another stain on a party that already suffers from a reputation that it does not represent a growing majority of voters. If that perception persists, the current stranglehold the GOP has on the House, Senate and White House will be very short-lived.

Maria Cardona is a principal at the Dewey Square Group, a Democratic strategist and a CNN/CNN Español political commentator. Follow her on Twitter: @MariaTCardona.

The views of contributors are their own and not the views of The Hill.