The president pro tempore of the United States Senate is the second-highest-ranking official of the United States Senate, after the vice president. According to Article One, Section Three of the Unite
Chuck Grassley official photo 2017
John Tyler is the only Senate president pro tempore to later become President of the United States.
Hubert Humphrey (D-Minnesota) was the first deputy president pro tempore in 1977–1978.
The United States presidential line of succession is the order in which the vice president of the United States and other officers of the U.S. federal government assume the powers and duties of the U.
President pro tempore of the United States Senate
…until the election of another. Since the enactment of the current Presidential Succession Act in 1947, the president pro tempore is third in the presidential line of succession, after the vice president and the speaker of the House of Representatives. The current president pro tempore of the U.S. Senate is Chuck Grassley…
Federal judge Sarah T. Hughes administering the presidential oath of office to Lyndon B. Johnson following the assassination of John F. Kennedy, November 22, 1963
Chief Justice Warren Burger administering the presidential oath of office to Gerald Ford following the resignation of Richard Nixon, August 9, 1974
In April 1841, John Tyler became the first person to succeed to the presidency intra-term upon the death of William Henry Harrison.
1st-in-line of succession, new Vice President Gerald Ford addressed Congress in 1973 in front of 2nd-in-line Speaker of the House Carl Albert, and 3rd-in-line President pro tempore of the Senate James Eastland.