Chels had a boot? This is a new development to me.
Saw a picture - she is ....was Vice President of Clinton Foundation. :)
This link shows a few different pictures of her in boot but I don’t see a date so it’s not conclusive:
https://www.bing.com/images/search?q=chelsea+clinton+boot&qpvt=chelsea+clinton+boot&FORM=IGRE