>> there was robert taft, but the big ones were john calhoun, daniel webster, henry clay, the pre-civil war era. securities committee quickly decide on the top three, webster, clay, calhoun. they had a longer debate on the next two, and even back at that point kennedy preferred a german named george noris, but there were some hints that the nebraska senators might filibuster that choice of kennedy had to back off and go with -- there were some hints of filibusters and delays in the senate. >> what would you say was one of president kennedy's most substantive pieces of legislation in the senate? >> first of all, is very active on labor issues. he was the chairman of the subcommittee, a labor subcommittee and that was the one domestic issue he really dug into. it was a huge issue back at the time. he mastered the big it was the one domestic issue he mastered. and even his contemporaries said he understood the nuances of labor law better than anyone. interestingly he got caught in a very complex political battle, and the final bill didn't really resemble what he wanted. i was a labor law b