As clock ticks, Republicans try to move ahead on Obamacare repeal

By Susan Cornwell and Amanda BeckerWASHINGTON (Reuters) - The Trump administration and top U.S. Senate Republicans pushed on Tuesday for action on a bill to dismantle Obamacare, but time was running out and they were still hunting for the votes needed to pass their latest attempt to gut the 2010 healthcare law.Vice President Mike Pence lunched with Republican lawmakers on Capitol Hill to urge them to approve the legislation introduced last week by Republican Senators Lindsey Graham and Bill Cass