In a limited company, the liability of members or subscribers of the company is limited to what they have invested or guaranteed to the company.
The current President pro tempore of the Senate is Utah Republican Orrin Hatch. Elected on January 6, 2015, he is the 90th person to serve in this office.
Unlike the Senate president and the Senate president pro tempore, the position of Senate minority leader is not included in the U.S. Constitution. The first minority leader of the U.S. Senate, Senator Oscar Underwood (D-Ala.), was recognized in 1920, five years before to the recognition of the first majority leader.