What does Hallie make of Jim's arrival on the campaign trail?
She feels a little territorial and threatened by Jim. Why is it his place to come in and assume this position of power, when she's been doing it a lot longer than he has? She's done this before, as far back as the Kerry campaign and she's learned not to ask difficult questions she won't get any answers to anyway.
What's she doing on the trail? What does she hope to accomplish?
She just wants to be in it. She's hungry for the truth—like Jim, and all the other journalists on the show. She has a need to civilize and raise the bar and tell the truth. But she's taken a backseat in pursuing it until Jim shows up. Then she has no choice but to team up with him.
What does Hallie make of the ongoing love quadrangle that Jim has going on back home?
I don't think she really cares. She's not someone who likes a lot of drama. She might be starting to fall for him against her will, but she just thinks the Maggie story is funny.
Her feelings towards him seem pretty complex.
She resents liking him. They're a lot alike. They both want something more, probably both professionally and romantically. I never really thought about Hallie's love life, but I assume she's over the college dating scene, and sees that Jim's doing exactly what she wants to do. She's annoyed and threatened by it, but she's intrigued.