Dolce & Gabbana threatened Anna Wintour & Condé Nast, the publisher of Vogue and Vanity Fair, that they would pull all of their advertising in the magazine if they didn't stop Vanity Fair from publishing an upcoming story about D&G's tax fraud. Their advertising is worth $10-20 million.
Anna Wintour is the Artistic Director of Conde Nast and they know her so it makes sense. But they're lucky they haven't ran it earlier, this is only going to make the story bigger, they've been irrelevant and wouldn't have gotten much attention. Now it'll be huge, dumb move Domenico and Stefano.