Trump budget chief under fire over attack on Congressional budget analysts

By Amanda BeckerWASHINGTON (Reuters) - The White House's budget chief came under fire on Thursday from Democrats and others over his attack on the budget research office of the U.S. Congress, escalating tensions between Republicans and professional staffers on Capitol Hill.Office of Management and Budget Director Mick Mulvaney called "absurd" a recent finding by the nonpartisan Congressional Budget Office (CBO) that a Republican healthcare bill would cause 23 million people to lose health insura