Why did those who wanted to rewrite the Texas Constitution following Reconstruction call themselves Redeemers?

Redeemers were the Democrats in the South who wanted to regain their political power and enforce white supremacy.

Explanation:

After the Civil War, the Reconstruction Era began to rebuild the South again after its destruction in the war. During the Reconstruction period, those who wanted to rewrite the Texas Constitution were called Redeemers. Redeemers were the Democrats who bring their party back to power in the South. They wanted to save the South from the Republicans and control the rights of African Americans.