Dom was recently straightened out. Not with the Colombos, with the west side. Smart move, now that the old man is dead if the Colombos have internal strife or power struggles and anyone is looking to settle old scores from the last period of strife, he can't be touched without permission from the new family.
A bit of background:
https://joebrunoonthemob.wordpress.com/tag/dominick-black-dom-dionisio/