Noun
the secrecy of police officers who lie or look the other way to protect other police officers
Source: WordNetthe blue wall cracked when some officers refused to take part in the cover-up Source: Internet
Former Police Officers Explain The 'Blue Wall Of Silence' Source: Internet
Trump, like he did in 216, campaigning in Wisconsin, Michigan and Pennsylvania, can now go into supposed Blue Wall states and really force the issue there. Source: Internet
Up for grabs in the state: 10 electoral votes, a key piece of the once solidly Democratic voting "Blue Wall" of Midwest and Great Lakes states that Trump won last election by less than 23,000 votes, or about 1%. Source: Internet
With the swing of white voters without college degrees firmly to Trump’s camp, the Blue Wall that Democrats have relied on for decades — and that Trump knocked down in 2016 — is far too fragile to rely on. Source: Internet