id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-5720 President pro tempore of the United States Senate - Wikipedia .html text/html 4273 591 62 Since 1890, the most senior U.S. senator in the majority party has generally been chosen to be president pro tempore and holds the office continuously until the election of another. The president pro tempore is third in the line of presidential succession, following the vice president and the speaker,[8] and consequently is one of the few members of Congress entitled to a full-time security detail.[9] Additional duties include appointment of various congressional officers, certain commissions, advisory boards, and committees and joint supervision of the congressional page school.[8] The president pro tempore is the designated legal recipient of various reports to the Senate, including War Powers Act reports under which they, jointly with the speaker, may require the president to call Congress back into session. In January 1945, the 79th Congress elected Kenneth McKellar, who at the time was the senator with the longest continuous service, to be president pro tempore. ./cache/en-wikipedia-org-5720.html ./txt/en-wikipedia-org-5720.txt