By 1968, a majority of americans a-supported martin luther king’s nomination as us president. b-were united in support of the vietnam war. c-believed that the vietnam war was a mistake. d-supported president johnson’s reelection

C - it became politically unpopular and was fueling a social revolution that was  bringing to bare other problems.  These problems fueled more tension within the country. There was a widespread general defiance of authority that challenged military, police, politicians, education, housing, race relations, and illicit drug use.