That's a broad statement that explains nothing. Why don't you research this a little and tell the whole story.

That didn't really happen. But Trump once ordered a reservoir in California to be emptied to bring the water closer to the forest. Turned out the water just went into a dry lake bed - and sept into the soil so it was a huge waste of water. But Trump didn't care because he was just doing it out of spite.

Either you're really bad at reading comprehension or you just don't care about being accurate. There is one single reservoir being drained. This is because it holds drinking water, has a faulty cover, and the water isn't safe to drink. There are two other nearby reservoirs which can be used for aerial filling of fire fighting.