Trump made some very grand promises. He has to deliver on some of the bigger ones eventually. I know he'll blame congress but he has the benefit of a same-party congress so that won't deflect everything.
Right now, he's spending money on his pet projects while cutting taxes and with no real way to replace that revenue. He's got to do something about that, balancing the budget is a major point for his presidency.
"Draining the swamp" was as empty a campaign promise as has ever existed. This one can't be defended at all.
The bottom line is that Trump has a bunch of pivotal campaign promises that it doesn't look like he'll keep. Most of those can't be called "broken" yet but they are certainly trending in that direction. It's still possible for some of them, assuming legislation is being worked on behind the scenes.
It's going to be interesting to see if he's able to turn things around before the next election.