Imagine if the Democrats offered Republicans a deficit deal that had more than $3 in tax increases for every $1 in spending cuts, assigned most of those spending cuts to the Pentagon, and didn't take a dime from Social Security, Medicaid or Medicare beneficiaries. Republicans would laugh at them. But without quite realizing it, that's the deal Republicans have now offered to the Democrats. In August, Republicans scored what they thought was a big win by persuading Democrats to accept a trigger that consisted only of spending cuts. The price they paid was 1) concentrating the cuts on the Pentagon...