carte-blanche

US /ˌkɑːrt ˈblɑːnʃ/
UK /ˌkɑːrt ˈblɑːnʃ/
1.

carte blanche

complete freedom to do something:

:
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Congress has effectively given the president carte blanche.
:
blanchcartshopping cartà la carteupset the apple cartput the cart before the horse