In cities across the nation — Phoenix, Seattle, Indianapolis — owners have used the absence of a Los Angeles franchise as leverage. They have extracted concessions worth hundreds of millions of dollars from taxpayers while threatening — though it is rarely said explicitly, and doesn't have to be — to move to L.A. "I'm suspicious whether the NFL owners really want to fill that void — or whether it is in their interest to keep Los Angeles without a team," said Louisiana Rep. Joe Toomy, a Republican. "Financially, they are taking full advantage of this, and it has worked against...