Poll says 15 percent of those questioned like Republicans control of Congress . Number is 7-point drop from January , but is 34 percent higher than support for Congress . Backing for Republicans at 34 percent , according to Congress poll .
Poll says 49 percent of those questioned like Democratic control of Congress . Number is 7-point drop from January , but is 15 percent higher than support for GOP . Backing for Republicans at 34 percent , according to CNN/Opinion Research poll .