WASHINGTON (Reuters) - U.S. Senate Democratic leader Chuck Schumer said on Friday he hoped Congress had reached a turning point on efforts to repeal Obamacare and it was time for the parties to work together to stabilize the insurance markets and fix the system’s weaknesses. Schumer, speaking at a news conference, praised the three Republican senators who decided join Democrats in voting against a Senate effort to pass a slimmed-down version of the Republican healthcare bill.  “I hope this is a turning point,” Schumer told reporters. “On healthcare, I hope we can work together to make the system better in a bipartisan way.” 