What was the tidelands controversy, and how did it represent a major change i n texas politics in the 1950s?

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.