Can a publicist be a journalist? Watch
Realistically the thing limiting your ability to get into that area won't be your degree title, it will be how well you can network and make connections in industry. That is something no degree can teach you, realistically...
I've gone to a few seminars where journalists have spoken about how they got into the positions they're currently in, a lot of them started off in completely different careers or were approached after graduation.
I'm hoping to go into international journalism myself after getting a History and Chinese Studies degree
Best of luck