Answer:
Thomas Jefferson, who was at that time in Paris as an ambassador, but participated in the creation of amendments through correspondence with Madison, called the absence of the Bill of Rights a huge mistake.
At first, out of 19 amendments, many of which were rejected by Congress or modified, 12 amendments entered the final draft of James Madison, but they were not ratified. The eleventh gave the right not to serve in the army for religious reasons. The twelfth stated that no state would violate the equal rights of conscience, freedom of the press and jury trial. That is, it extended the actions of the First and Sixth amendments to the internal affairs of the states. Madison called it "the most important amendment of all." It went through Congress, but was blocked by the Senate.
Step-by-step explanation:
Even during the first session of Congress, convened under the new Constitution, James Madison, subsequently the 4th President of the United States, took the initiative to propose a number of constitutional amendments - the Bill of Rights. This document laid the legal foundation for the practical implementation of the American concept of civil rights and freedoms.
In September 1789, Congress and the Senate received draft constitutional amendments. Madison partly saw in Bill a certain educational link, partly - a weapon in the fight against a possible future repressive government. He also borrowed the argument from Jefferson, saying that a declaration of rights would help establish the judicial branch as a guardian from the other two branches.