Even if they have a fairly pro-life voting record, I don't know how a pro-lifer could work to advance the agenda and power of such a pro-murder party.
They are weakening. The Democrats put something else as the top thing on their agenda for the first time. 10 years ago Democrats were not allowed to run and call themselves "pro-life" - because that's our language.
Iraq has changed that. They want out so bad, they're willing to start moving towards the position. Remember, only a rare few are total ideologues on this - the majority of them are politicans, and will change in an instant if they are pressured.