Republicans worry Trump scandals may doom legislative agenda

By Ginger Gibson and Richard CowanWASHINGTON (Reuters) - Scandals enveloping U.S. President Donald Trump have left Republican lawmakers and lobbyists increasingly gloomy about the prospects for passing sweeping tax cuts, a rollback of Obamacareand an ambitious infrastructure program.With the White House and both chambers of the U.S. Congress under Republican control, party leaders and their allies in the business community had expected to get quick traction on their plans, with corporate tax cut