Thousands of critics took to Twitter on Monday morning to knock MSNBC host Joe Scarborough Charles (Joe) Joseph ScarboroughScarborough calls on Cuomo to walk back statement he made about Trump: 'Out of bounds' Mika Brzezinski: 'Super grossed out' by Trump speech attendees 'who put their lives at risk' Democrats tear into Trump's 'deep state' tweet: His 'lies and recklessness' have 'killed people' MORE after he said it was "un-American" for the crowd at Game 5 of the World Series in Washington, D.C. to chant "lock him up" at President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

More than 10,000 tweets including the phase “sorry Joe” began trending on Twitter as users defended the actions of onlookers at Nationals Park on Sunday night.

“The misrule, cruelty and infantilism of this administration is such that some sense of an enduring ethos is actually redeemed when we the people openly express our contempt,” wrote author and TV writer David Simon. “Dissent is the most American thing there is -- and to get clean, we need as much as there is on display.”

The misrule, cruelty and infantilism of this administration is such that some sense of an enduring ethos is actually redeemed when we the people openly express our contempt. Dissent is the most American thing there is -- and to get clean, we need as much as there is on display. https://t.co/hmp4JHr8nD — David Simon (@AoDespair) October 28, 2019

Leah Green, the co-executive director of progressive advocacy group Indivisible, wrote: “Counterpoint: ‘there will be accountability for your crimes’ is 100% the best message we could be sending to the rest of the world right now.”

Counterpoint: "there will be accountability for your crimes" is 100% the best message we could be sending to the rest of the world right now https://t.co/WZXd07epVp — Draculeah Greenberg (@Leahgreenb) October 28, 2019

“Sorry Joe, you don't get to put democracy in a time out,” Twitter user Greg Morelli wrote. "Sorry Joe, it feels like you want the rest of us to forget that you played an instrumental role in getting Trump elected & now you want to play revolutionary with the coiffed hair. Sorry Joe, we remember.”

Sorry Joe, you don't get to put democracy in a time out.



Sorry Joe, it feels like you want the rest of us to forget that you played an instrumental role in getting Trump elected & now you want to play revolutionary with the coiffed hair.



Sorry Joe, we remember.#SorryJoe https://t.co/H5vQdA65ZY — Greg Morelli (@yesgregyes) October 28, 2019

Sorry Joe, but what we do not tolerate in the US are wannabe dictators. This was the most American thing ever, booing a corrupt President who stole the office with the help of a foreign adversary. And at the quintessential American past time. I thought it was wonderful! — Hillary Won (@CorgisforLove) October 28, 2019

I'm sorry Joe and Mika don't act like you weren't blasting Hillary's emails in 2015 and allowing lying Donald to phone in the show. Take a seat. — regina lewis (@reginaraye) October 28, 2019

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Scarborough scolded the World Series crowd, calling it “un-American” to chant “lock him up” and boo when Trump came on the scoreboard during the game between the Houston Astros and Washington Nationals.

“It started with Donald Trump. In fact, he’s made it a centerpiece of his campaign rallies,” Scarborough said, noting that the chant originated against 2016 Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE.

Co-host Mika Brzezinski Mika Emilie BrzezinskiMika Brzezinski: 'Super grossed out' by Trump speech attendees 'who put their lives at risk' Trump hurls insults at Harris, Ocasio-Cortez and other women Trump targets 'Complete psycho' Scarborough, 'ditzy airhead' Brzezinski while praising 'Fox & Friends' MORE interjected that she finds it “sickening” when Trump supporters chant “lock her up.”

“Of course it's sickening,” Scarborough agreed. “We are Americans and we do not do that. We do not want the world hearing us chant ‘lock him up’ to this president or to any president.”

Scarborough took to Twitter after the segment aired to defend himself against his critics.

“So let’s see if I’ve got this straight: When crowds chant 'Lock her up” toward Hillary, it is illiberal and anti-American. (I agree). But when crowds chant the same toward Trump, it is suddenly a fulsome exercise of sacred First Amendment rights. What hypocritical clowns,” he tweeted.

He added that those who “think that democracy is strengthened by calling for the arrest of political opponents” are as “ignorant and illiberal” as the president himself.

“Delete your account and read some civics,” Scarborough fired back. “Stop embarrassing yourself.”

If you think that democracy is strengthened by calling for the arrest of political opponents, you’re as ignorant and illiberal as Trump himself. Delete your account and read some civics.

Stop embarrassing yourself. — Joe Scarborough (@JoeNBC) October 28, 2019

Demonstrators also unfurled “Veterans for Impeachment” banners behind home plate during the World Series game.

--This report was updated at 1:56 p.m.