Protestors gathered Friday night outside Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellMcConnell says he backs Mueller probe after classified briefing Overnight Finance: Trump signs Dodd-Frank rollback | Snubs key Dems at ceremony | Senate confirms banking regulator | Lawmakers lash out on Trump auto tariffs Senate Dems’ campaign chief ‘welcomes’ midterm support from Clintons MORE's (R-Ky.) home in Louisville to read Coretta Scott King's 1986 letter against new Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsDirector of federal prisons resigns after clashes with Kushner, Sessions: report Black Caucus raises concerns over Amazon facial recognition software Immigrant women, children abused by gangs need our protection MORE.

The letter rose to controversy earlier this week when Sen. Elizabeth WarrenElizabeth Ann WarrenRising star Abrams advances in Georgia governor race Progressive rise is good news for Sanders, Warren Juan Williams: Trump gives life to the left MORE (D-Mass.) tried to read it ahead of a floor vote on Sessions's confirmation. McConnell led a GOP vote to bar her from speaking.

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“Sen. Warren was giving a lengthy speech,” McConnell explained. “She had appeared to violate the rule. She was warned. She was given an explanation. Nevertheless, she persisted.”

The phrase by McConnell has since been turned into a "feminist rallying cry."

According to reports, about 400 protesters gathered Friday night to read the letter by King. They shared their experience on social media sites, with the #LetterToMitch and #LetLizSpeak.