ful ▁pick et ▁of ▁the ▁office . ▁Later , ▁the ▁Rain bow ▁Co al ition ▁was ▁joined ▁nation wide ▁by ▁Stud ents ▁for ▁a ▁Democratic ▁Society ▁( SD S ), ▁the ▁Brown ▁Ber ets , ▁A . I . M ., ▁and ▁the ▁Red ▁Guard ▁Party . ▁In ▁May ▁ 1 9 6 9 , ▁Ham pton ▁called ▁a ▁press ▁conference ▁to ▁announ ce ▁that ▁this ▁" rain bow ▁coal ition " ▁had ▁formed . ▁It ▁was ▁a ▁phrase ▁Ham pton ▁co ined ▁and ▁J esse ▁Jackson ▁later ▁popular ized , ▁eventually ▁using ▁the ▁name ▁for ▁his ▁own , ▁un related ▁coal ition , ▁Rain bow / P US H . ▁ ▁Ham pton ▁rose ▁quickly ▁in ▁the ▁Black ▁Pan thers , ▁based ▁on ▁his ▁organ izing ▁skills , ▁substantial ▁or ator ical ▁g ifts , ▁and ▁personal ▁char is ma . ▁Once ▁he ▁became ▁leader ▁of ▁the ▁Chicago ▁chapter , ▁he ▁organized ▁week ly ▁r al lies , ▁worked ▁closely ▁with ▁the ▁B PP ' s ▁local ▁People ' s ▁C lin ic , ▁taught ▁political ▁education ▁classes ▁every ▁morning ▁at ▁ 6 am , ▁and ▁launched ▁a ▁project ▁for ▁community ▁super vision ▁of ▁the ▁police . ▁Ham pton ▁was ▁also ▁instrument al ▁in ▁the ▁B PP ' s ▁Free ▁Break fast ▁Program . ▁When ▁Bob ▁Brown ▁left ▁the ▁Party ▁with ▁Sto k ely ▁Car m ich ael , ▁in ▁the ▁F BI - f oment ed ▁SN CC / Pan ther ▁split , ▁Ham pton ▁assumed ▁chair mans hip ▁of ▁the