To some observers, the rise of democracy in the United States raised troubling questions about the new power of the majority to silence minority opinion. As the will of the majority became the rule of the day, everyone outside of mainstream, white American opinion, especially Indians and blacks, were vulnerable to the wrath of the majority. Some worried that the rights of those who opposed the will of the majority would never be safe. Mass democracy also shaped political campaigns as never before. The 1840 presidential election marked a significant turning point in the evolving style of American democratic politics.