who became president when jfk was killed?
Lyndon B. Johnson
entailment
 The assassination of President John F. Kennedy showed the need for a clear way to determine presidential succession in the context of the Cold War . The new President , Lyndon B. Johnson , had once suffered a heart attack , and the next two people in line for the presidency were the 71 year old Speaker of the House John McCormack , and the 86 year old Senate President pro tempore Carl Hayden . Senator Birch Bayh succeeded Kefauver as Chairman of the Subcommittee on Constitutional Amendments and set about advocating for a detailed amendment dealing with presidential succession . 

contradiction
 = = = Appointment of Gerald Ford as Vice President ( 1973 ) = = = 

entailment
 President Truman must be impeached and convicted . His hasty and vindictive removal of General MacArthur is the culmination of series of acts which have shown that he is unfit , morally and mentally , for his high office . The American nation has never been in greater danger . It is led by a fool who is surrounded by knaves . 

contradiction
 2001 – 2002 : Rudy Giuliani and Judith Nathan ; activating the drop was also Giuliani 's final act as mayor . Michael Bloomberg officially became the new Mayor of New York City upon the beginning of 2002 , and took his oath of office shortly after midnight 

neutral
 After Kennedy 's assassination , Congress altered the Secret Service 's mandate to include protection for presidential candidates . The remaining candidates were immediately protected under an executive order issued by Lyndon Johnson , putting a strain on the poorly resourced Secret Service . 
