The President of the Senate (also president of the congress) is the highest-ranking official of the Senate of Colombia and is charged with maintaining order and decorum, recognizing members for speaking duties, and interpreting the rules, practices, and precedents of the Senate. The Constitution of Colombia establishes that the president of the Senate has the authority to cast a decisive vote.
All but two of the Senate presidents have been members of a political party or faction; the number of members of each is: