But in 1962 he disagreed with the party line and resigned from this Executive Committee and finally left the POUM .
A few years later , he re-joined the POUM and , in the spring of 1961 , he became a member of its Executive Committee .
In 1962 he disagreed with the party line and resigned from this Executive Committee and finally left the POUM .
A few years later , he re-joined the POUM and , in the spring of 1961 , he became a member of its Executive Committee .