Couldn't stand the Jessie character (spoilers)
To me, she seemed like too much of a wannabe interfering in the journalist team's plans by wanting to tag along. If she wasn't there, I'm sure Lee would still be alive. And I was so pissed that because she put herself in the line of fire at the end that Lee sacrificed herself like that instead of staying out of the way and letting the professionals handle it. Although, I still found it an unnecessary sacrifice considering Lee could have quickly grabbed Jessie out of the way instead of just standing there as Jessie takes her photo. It seemed like Jessie was too fascinated photographing her death that it was like she might as well have been responsible killing her.
Plus, they made it look way too easy getting access to the president like that.