Activism, in a general sense, can be described as involvement in action to bring about change, be it social, political, environmental, or other change. This action is in support of or opposition to one side of a controversial argument.
There are many different forms of activism; a select list follows.
... found the Democratic Socialists of America with the purpose of "realignment" - the aim of working within the Democratic Party and pulling it to the Left (pretty much the ...