Trump to Senate Republicans: kill Obamacare now, replace later

By Doina Chiacu and Susan CornwellWASHINGTON (Reuters) - U.S. President Donald Trump urged Republican senators in a tweet on Friday to repeal Obamacare immediately if they cannot agree on a new plan to replace it, muddying the waters as congressional leaders struggle for consensus on healthcare legislation.Senate Republican leaders had set Friday as the target for rewriting legislation for a simultaneous repeal and replacement of extensive parts of the 2010 Affordable Care Act, the law dubbed Ob