SAN FRANCISCO (Reuters) - A U.S. federal judge said on Wednesday he would likely issue a ruling next week on a request from several U.S. states to block President Donald Trump’s decision to terminate cost-sharing payments to health insurance companies under Obamacare.  U.S. District Judge Vince Chhabria in San Francisco federal court said he would likely hold a hearing on Monday or Tuesday, and then quickly issue an order. That ruling could be immediately appealed by the losing side, Chhabria said at a hearing on Wednesday.  