Senate Armed Services Committee Chairman Roger Wicker (R-MS) has a lot on his plate this month, amid the upcoming expiration of a stopgap continuing resolution that could shut down the government and the crafting of a $150 billion budget reconciliation proposal that would surge spending on missile defense, ships, munitions and other areas. But he’s also in the middle of taking on what he says is the most powerful agency in government -- the White House Office of Management and...