shake (something) to its foundations

To impact something in a way that affects its very essence, especially concerning its values or beliefs. The election of the outsider candidate shook the party to its foundations, and led to a lot of soul-searching among its members.

See also: foundation, shake, to

See also:

shake (something) to the foundations
shake something to the foundations
rock (something) to its foundations
shake the foundations of (something)
shake/rock the foundations of something
rock the foundations of (something)
sum and substance
the sum and substance
go to the stake
in essence

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