How effective was the reconstruction in restoring the southern states to the you Union?

Reconstruction was partially effective in restoring the Southern states to the Union, as it did reestablish federal authority and integrate formerly Confederate states back into the political framework of the United States. However, it faced significant resistance and backlash, leading to the establishment of Jim Crow laws and a resurgence of white supremacist groups, which undermined many of its achievements. Ultimately, while it laid the groundwork for civil rights advancements, the withdrawal of federal troops in 1877 and the subsequent rise of segregationist policies demonstrated the limitations of Reconstruction's success.