smoke and mirrors

US /smoʊk ænd ˈmɪrərz/
UK /smoʊk ænd ˈmɪrərz/
"smoke and mirrors" picture
1.

bluff, tromperie, illusion

a deception or an obscuring of the truth, often through elaborate or misleading presentations

:
The company's impressive financial report turned out to be all smoke and mirrors.
L'impressionnant rapport financier de l'entreprise s'est avéré n'être que du bluff.
His promises were just smoke and mirrors, designed to win votes.
Ses promesses n'étaient que du bluff, conçues pour gagner des voix.