The phrase "intervene in political life" can be used in various contexts which require more nuanced descriptions of the actions involved and their implications. One potential synonym that captures this complexity is "meddle" which suggests interference without proper authority or justification. Other synonyms might include "interfere", "intrude", "intervene" (without the negative connotation of meddling), "insert oneself", "disrupt", "challenge", "influence", "participate", "engage", "act upon", and "assert oneself." Depending on the specific situation and intentions of the actors involved, any of these words could be used to substitute for "intervene in political life".