smoke and mirrors
US /smoʊk ænd ˈmɪrərz/
UK /smoʊk ænd ˈmɪrərz/

1.
humo y espejos, engaño, ilusión
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.
El impresionante informe financiero de la empresa resultó ser todo humo y espejos.
•
His promises were just smoke and mirrors, designed to win votes.
Sus promesas eran solo humo y espejos, diseñadas para ganar votos.