Six - term Sen. Thad Cochran , R - Mississippi , holds off no party challenger . Democratic lawmaker Charles Rangel claims victory in tough New York primary . Rep. John Lankford wins Democratic Senate primary in Massachusetts . Given the thousands of votes outstanding , the people of Upper Manhattan and the Bronx deserve a full accounting of every vote to achieve a complete and accurate tally in this race , '' Espaillat said in a statement . McDaniel questions whether to challenge vote .
Six - term Sen. Thad Cochran , R - Mississippi , holds off no party challenger . Democratic lawmaker Charles Rangel claims victory in tough New York primary . Rep. John Lankford wins Democratic Senate primary in Massachusetts . McDaniel questions whether to challenge vote .