Taurus645mercury14 Taurus645mercury14 11-10-2019 History contestada What is one reason that political parties developed during Washington's administration despite Washington's opposition to them? Plantation owners felt their interests would not be protected without them. Political parties were the only way to keep the British out of the United States. Leaders had clear differences of opinion about federal and state power. The men not chosen to be president wanted to line up support for the next election.