Because the opposite team surrender
Senator Joseph McCarthy used his position as a Senator to commence and rile up hearings to see if America had been infiltrated by communists.
His basic tactic was to throw a wild net and accuse a wide range of government officials and well known Americans of being communists and then bring them in to testify under oath. He would urge them to name names of people that they knew to be communists to let them go free.
Eventually, McCarthy's accusations went too far and people started to firmly push back.
A public policy is shaped through something called "<em>Public Policy Cycle</em>". It consists in 5 stages, starting with the agenda.
The <em>agenda</em> is a setting of problems and concerns that governors and implementors need to analyze in order to find the one they will address at the moment.
After the problem is chosen, the other stage of the cycle is the "formulation", which consists in creating the policy itself, all the people that are going to be addressed with that policy, how it is gonna affect these people, etc.
Then, the "implementation". In this stage, the policy is effectively implemented, and starts working.
And last, the "evaluation". <em>Evaluation</em> is the stage when the governors and implementors get to see the outcomes of the policy, and then formulate and implement changes to improve it.
Answer:
They were to adopt the Fourteenth and Fifteenth amendments and select United States senators in preparation for readmission to the Union. On March 30, 1870, President Grant signed the act that readmitted Texas to the Union and ended Congressional Reconstruction.