By ANNE D’INNOCENZIO, AP Retail Writer NEW YORK (AP) — The National Retail Federation, the nation’s largest retail trade group, forecasts that holiday sales will rise between 3.8% and 4.2% even as uncertainty looms over an escalating trade war with China. The holiday sales forecast, announced Thursday, marks an increase from the disappointing 2.1% growth seen in the November and December 2018 period