Hope you are doing okay... it's weird that I still haven't heard anything from Columbia. just checked my spam. Is it from DGS or is it from the poli sci deparment?
https://www.poliscirumors.com/ I know this is mostly for people that have been doing a phd in poli sci, but you can take a look. Occasionally there are pre-doc positions posted.
Just received an offer from minnesota! My first offer! Email from dgs with offer attached. Was sad bc of the UChi rejection this morning. But wish everyone luck!