Several of the courts hearing DACA cases upheld the law, in at least one instance solely because of Trump's tweets established a racial motivation rather than a policy motivation for terminating the program.
The Muslim ban was heavily modified after courts repeatedly struck it down based on Trump's anti-Muslim tweets. The final version was designed to address the issues raised in the original rulings. It is limited to countries like Iran and Syria which are openly hostile to the US, and countries like Yemen and Somalia which have contributed a large portion of the membership of terrorist groups like Al Queada and ISIS. Two of the countries were added to that list Venezuela and North Korea) solely because they aren't Muslim. Persons on this list are feasibly national security concerns, which is just enough of a justification to uphold the travel ban on legal grounds.
I dunno, looking on from overseas it’s a bit surreal. Trumps tweets have normalized too, so it’s no news anymore when he tweets something outrageous.