washington white house economic adviser gary cohn remain post white house official say thursday speculation early day cohn possible departure rattle u.s. stock market dollar gary intend remain position nec national economic council director white house nothing change white house official say wall street investors also concern u.s. president donald trump refusal back initial reaction demonstrations charlottesville virginia would damage prospect economic agenda include tax reform key u.s. equity index 0.6 percent percent dollar touch high well day peak cohn speculation gary focus responsibilities white house official say decline comment whether president cohn speak cohn reaction happen week cohn decision remain come amid mount speculation top officials may look exit strategy wake grow backlash trump response saturday violence charlottesville trump say tuesday anti-racist demonstrators responsible violence neo-nazis white supremacists instigate protest remark spark rebuke fellow republicans top corporate executives close ally even supporters include vice president stand president fallout also lead disband two ceo advisory panel grow number chief executives nation large company resign week protest president response corporate executives presidential councils also issue strong statements denounce racism bigotry cohn leave top job goldman sachs group inc gs.n take white house position serve administration point man tax reform infrastructure priorities departure would see setback plan trump increasingly combative relationship congress exacerbate late tweet target senators party could restrain progress reform even republicans control white house senate house representatives one wall street executive ask name note cohn serve moderate influence white house often see divide among various camp steve bannon white house senior adviser close tie far-right group say interview publish wednesday constantly butt head cohn issue trade china fight fight every day bannon tell american prospect liberal-leaning political magazine trump adviser cohn remain talk swirl white house departures