blue wall
Noun
Meaning
the secrecy of police officers who lie or look the other way to protect other police officers
Source: WordNetSynonyms
Hypernyms
Examples
the blue wall cracked when some officers refused to take part in the cover-up
Former Police Officers Explain The 'Blue Wall Of Silence'
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.
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%.
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.