Former President Donald Trump’s allies in Congress are planning to use congressional investigations to put the spotlight on one of his most prominent critics — the chairman of the Joint Chiefs of Staff, Gen. Mark Milley — should Republicans take control of the House in November’s midterms, say six people familiar with the plans. Some of Trump’s congressional allies view Milley’s criticisms of the former president, including that Trump was in mental decline and irreparably harming the country, as insubordinate and disrespectful of the commander in chief he was supposed to serve, according to Republicans familiar with the plans for the investigations. A former U.S.