Not really. He just says he favors the "right to choose". Nothing tricky about that. He supports legal abortion.
There is a big disconnect between pro abortion and pro choice. Most democrats are pro abortion and fight from that corner. They fight for the right to stick a fork in a baby's head and such its brains out of that hole.
Many republican are pro life and some are pro choice which means they don't want to take away the womans right to choose, but will work for education and work with their churches to stop abortion,
Education is the most powerful weapon.
But here's the thing, I would rather have a pro choice president then a pro abortion president like Hillary.