Milwaukee County Sheriff David Clarke Jr. brought the crowd at the Republican National Convention to its feet Monday night, declaring "Blue Lives Matter" to wild applause.

“We simply cannot be great if we do not feel safe in our homes, on our streets and in our communities,” Clarke said during his convention speech.

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“Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE understands that what can make our nation safe again is a recommitment to a system of justice in which no government official — not even those who have fought their way to the marble and granite halls of Washington — no private citizen, not even Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE ... can claim privilege above the law.”

Clarke’s speech received the biggest applause of the night up to that point.

Wisconsin sheriff David Clarke at #RNCinCLE: "Blue Lives Matter in America" pic.twitter.com/R99Lyc1Dac — Mashable News (@MashableNews) July 19, 2016

“I see this every day at street level, where many Americans increasingly have an uneasiness about the ability of their families to live safely in these troubling times. This transcends race, religion, ethnicity, gender, age and lifestyle.”

Clarke wrote an op-ed in The Hill earlier Monday, arguing that Black Lives Matter is the enemy.

“We as a people need to declare that we stand with rule of law, and not with the false tales of the revolutionary Marxist forces, who most recently have rebranded themselves from Occupy Wall Street to Black Lives Matter,” wrote Clarke.