Many of his campaign promises are dependent on Congressional action which thus far has been lacking but he can take action on immigration law enforcement which he has done to some extent.  He has suspended the DACA program but not ended it.  If he signs legislation providing any type of amnesty for any illegal alien then he has reneged on a vital campaign pledge.  He should also halt any payments to insurance companies for Obamacare since Congress has not funded the program.  It would go a long way in ending the program through natural death.