CNBC update: Cruz endorsement

11:30 AM ET Tue, 29 March 2016

Wisconsin Gov. Scott Walker has endorsed Ted Cruz for the GOP nomination; Campbell Soup is on track to have 75 percent of its soup in non-BPA cans by the end of 2016; and Defense Sec. Ash Carter and Veterans Affairs Secretary Robert McDonald laid wreaths at the Vietnam Veterans Memorial, reports CNBC's Sue Herera.