rock (something) to its foundations

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rock (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 rocked the party to its foundations, and led to a lot of soul-searching among its members.
See also: foundation, rock
References in periodicals archive ?
Theodore Roosevelt renounced boastfulness and warned that, if America fails, the cause of free self-government throughout the world will rock to its foundations. Adopting a spirit of equity, caution and compromise, Andrew Jackson meditated at length on the duties and limits of his office in the U.S.
The East End of Glasgow will rock to its foundations and, once again, I stress Celtic cannot leave the backdoor open.
As night fell, the Manic Street Preachers played new material that will shake British rock to its foundations. Buy the album when it is released next month.