Using Selenium -- how iterate Trello cards in a specific column?

So no code yet, but does anyone know w/ Selenium how I can:

1) Check if a Trello card exists in a specific column. (Yes I'm aware of XPATH and selectors :) ) 2) Iterate all the cards in that column while cards exist (to perform actions involving each card).

I want to automate a work project with Selenium (which I'm fairly comfortable with but I can't figure out how to loop through elements in a column on Trello.

Thanks!