What did whites do to fight against reconstruction?

Whites opposed Reconstruction through various means, including the formation of white supremacist groups like the Ku Klux Klan, which used violence and intimidation to undermine African American political participation. They also enacted discriminatory laws, such as Black Codes, to restrict the rights of freedmen and maintain racial segregation. Additionally, many white Southerners resisted federal policies aimed at integrating African Americans into society, fostering a culture of resistance that ultimately led to the abandonment of Reconstruction efforts.