The percentage of conversation about Sen. Ted Cruz that was positive on Facebook fell after the Texas Republican criticized net neutrality, calling it “Obamacare for the Internet.” Positive interactions related to Cruz on Facebook dropped from 52 percent over the period of Oct. 29 to Nov. 4 to 34 percent from Nov. 5 to Nov. 11, following the firebrand Texas senator’s reaction to Obama’s embrace of net neutrality, according to data supplied by Facebook. The percentage of negative interactions for the first week examined was 44 percent, with 4 percent of the interactions being neutral. For the later time period,...