This Gallup poll really isn't really surprising. For the Kermit Gosnell murder trial to change someone's mind on abortion, they would have actually had to learn something about it, which the majority of Americans haven't.
Although the latest Gallup survey was conducted after much of the testimony in this trial had already been reported in the news, the stability in Americans' views about the legality of abortion suggests the trial has not swayed public opinion. Part of the reason could be that relatively few Americans are paying attention to the case.Note the incredible ignorance of the 18-34 age group of whom 71%!!! aren't following the Gosnell case at all. On one hand, you would think the social media would possibly provide them more opportunities to hear about Gosnell. Maybe they're too busy following Kim Kardashian and Justin Bieber.
One-quarter of Americans say they have followed news of the case either very closely (7%) or somewhat closely (18%), but that is well below the 61% average level of attention Americans have paid to the more than 200 news stories Gallup has measured since 1991. An additional 20% of Americans say they are following Gosnell case "not too closely" while 54% say "not at all." This makes the Gosnell case one of the least followed news stories Gallup has measured.