There is a difference between Churches in the USA

One really has to discern between Christian groups when it comes to beliefs and attitudes towards the Bible. There are also many many differences in attitude toward minorities and Gay and Lesbian people. Mainline or mainline Protestant (also sometimes called mainstream) denominations are those that comprised the vast majority of American Christianity from the colonial era until the early 1900s. Most of these denominations were brought to America by their respective historic immigrant groups denominations. Today, most mainline protestants remain rooted in the Northeastern and Midwestern United States. As a group they have maintained theologies that stress social justice concerns together with personal salvation and evangelism. They have been credited with leading the fight for social causes such as racial justice and civil rights, equality for women, rights for the disabled and other key issues. Many of the issues that such groups have advocated for have been embraced by American law and society, but at the same time mainline denominations have been somewhat marginalized. In addition, mainline churches and laity founded most of the leading educational institutes in the US. In typical usage, the term mainline is contrasted with evangelical. Mainline churches tend to be more liberal in terms of theology and political issues. This places them to the ideological left of the evangelical and fundamentalist churches.