J.R.
I wouldn't give up yet and I agree with the Praise, Praise, Praise. I am two weeks into potty training my little boy who is 2 and I think he kind of likes the one on one time with Mommy. I have a 7 month old and 5 year old but usually try to occupy them with some toys (in the hallway where I can still see them) and I will try to focus all my attention on him while he is sitting on the potty (read a book, sing a silly song, giving hugs and kisses) and that has worked unbelievably well (no pee-pee accidents since the first couple of days and most of the time getting to the potty for #2). If yours is jealous of your newborn maybe it will help if he sees that he gets more of your attention when he goes on the potty. Mine sometimes tells me he has to go but we are also at the point of just sitting on the potty every hour until it sinks in some more. Good luck and think how nice it will be and how much money you can save by just having one in diapers.