As Fox Corp unveiled its latest earnings report shortly before hosting its New York upfront bash for advertisers, the Lachlan Murdoch-led media empire signaled how dependent it is on the NFL to boost the fortunes of its news and entertainment portfolio. In its latest quarter, the company saw advertising revenue decline to $1.56 billion from $2.04 billion in the comparable quarter last year when it hosted Super Bowl LIX (the Big Game was televised by NBC this year). The eldest son of Rupert Murdoch found himself being asked by Wall Street analysts about his father’s purported pressure campaign against the NFL and his appeal to the White House on the topic of ever-richer rights deals. Lachlan may have been less likely to swat down the speculation, given that it was Rupert’s own paper, The Wall Street Journal , that took a broad, front-page look at the influence campaign over the weekend. “There is no tension, really, with the NFL,” Lachlan replied on an earnings call.…