tomar cartas en el asunto

== Spanish == === Verb === tomar cartas en el asunto (first-person singular present tomo cartas en el asunto, first-person singular preterite tomé cartas en el asunto, past participle tomado cartas en el asunto) (idiomatic) to step in, stand in (idiomatic) to take action, to intervene (in something), to take matters into one's own hands