Which of the following are true about the Reconstruction amendments to the US. Constitution (13,14, and 15)? Check all that apply. because these freedoms and rights were now written into the U.S. Constitution by these new amendments (it had taken a bloody civil war to make this possible), from here on out, these rights would never be taken away established the principle of equality before the law guaranteed citizenship to African Americans abolished slavery prohibited denying someone the right to vote on the basis of race