Why did the untied states support sugar planters in their attempt tp overthrow Queen Liluokalani

The US overthrew Liliuokalanibecause she didn't keep the treaty that the former leader of Hawaii had with the planters. This treaty stated that theplanters could plant sugar crops in Hawaii. When Liliuokalani came to power she was anti-american and didn't want the planters there, so the americans overthrew her.