The Constitution enumerates certain powers which are reserved to the federal goverment and other powers which are delegated to the state.
Those powers which are not explicitly related in the document to any of the goverment levels will automatically be reserved to and exercised by the supreme federal goverment.
Basically, Texas has had underwater areas for as long as it has existed. When it was discovered that there were oil deposits there, the federal government wanted to take it away from Texas who was a recognize owner of the land. It was a case where the state and the federation had to fight in the supreme court. Politics changed because Texas started hating on anyone who tried to take it away so they switched their presidential support based on this.
Sinking of the USS mane, the events were blown out of proportion by yellow journalists, in yellow journalism, the blaming for the sinking was placed on the Spanish.