Greene defection highlights health care cracks in GOP shutdown unity

Shutdown jockeying over health care is intensifying, with Republicans showing some cracks in their unity and House Democratic Leader Hakeem Jeffries (N.Y.) insisting Democrats will only agree to a permanent extension of enhanced ObamaCare subsidies. 

President Trump and Republicans have sought to raise the pressure on Democrats to reopen the government by threatening mass firings of federal workers and withholding their back pay, but the GOP also is sending signals that Dem...