who elects the vice president if the electoral college fails to do so
Electoral College (United States) If no candidate for president receives a majority of electoral votes for president, the Twelfth Amendment provides that the House of Representatives will select the president, with each of the fifty state delegations casting one vote. If no candidate for vice president receives a majority of electoral votes for vice president, then the Senate will select the vice president, with each of the 100 senators having one vote.[12][13]
Twelfth Amendment to the United States Constitution The person having the greatest number of votes as Vice-President, shall be the Vice-President, if such number be a majority of the whole number of Electors appointed, and if no person have a majority, then from the two highest numbers on the list, the Senate shall choose the Vice-President; a quorum for the purpose shall consist of two-thirds of the whole number of Senators, and a majority of the whole number shall be necessary to a choice. But no person constitutionally ineligible to the office of President shall be eligible to that of Vice-President of the United States.[1]