Whakaotihia te rerenga e whai ake nei: I a Willis e neke ana ki Texas i te tau 1948, i marena hou, i mahi ia mo te pakanga a Lyndon B. Johnson mo te senate. I te wā i tū ia hei kaitono ki te Democratic National Convention i
I te tau 1956, 1960, me te tau 1968, ka noho ia hei hoa me te kaitohutohu mo te Perehitini Johnson.