We can give full credit for that to Irving Berlin and a Democrat congress (not that Republicans didn't also go along with the grift).
If Trump truly wants to "make America great" a drastic overhaul of the copyright law, if done right, might be a good first step. Making copyright law user-friendly rather than antagonistic toward creators and innovators should result in fewer lawsuits and more freedom for artists and composers. Technology has advanced way beyond physical, analog methods of printing books and magazines, as well as preserving live performances, speeches and music for future generations.
Laws need to accommodate both old and new, and for "limited times," if the Constitutional mandate is to be followed.
As long as Disney exists, this is not going to happen.
The big problem is that corporations are immortal, so their desires viz copyright are somewhat different from actual people. For a corporation, a 200 year copyright would make perfect sense. It's kind of funny because Disney makes extensive use of the public domain when it suits their purposes. If you take a look on how they dealt with Kipling's Jungle Book, that's kind of informative as well. When they started work on the original Jungle Book cartoon Kipling's book was still under copyright. The copyright expired before Disney released it so they never had to pay a penny in royalties. If I remember correctly, if copyright law back in the 60s had been the same as they are today, Disney wouldn't have been able to release Jungle Book royalty free until just a year or 2 ago.