david shreve, what is a live pair?> a eentleman'sgreement that was periodically used during this time in congress. in this case what it amounted to, what it always announce to is when the is an absent senator for who you know that senator's position, in this case they were referring to senator kennedy, a supporter of medicare, if you could hear that senator, absent senator with a presence senator, both of whom would agree not to vote, the absence senator could not the present senator agreeing not to vote caring essentially offsetting one against the other, one supporter against one opponent, what they were essentially asking the opponents to do was not to vote but to pair instead. >> historian david shreve, we little later. later on september 2nd, 1964, as you heard us discuss, the senate does approve the medicare amendment on a vote of 49-44. september 3rd, lbj and larry o'brien talk about the next steps for the measure. you will hear mentions of house speaker john mccormack, carl albert, a majority hale boggs and rep