"Ukrainian forces continue to defend [Kharkiv] .. with a pretty stiff resistance. [Russians are" there on the outskirts, as they were on Friday, but they've gotten really no closer to that. The fighting in Kharkiv remains pretty, pretty significant."
Surprised how long Kharkiv is holding out given the proximity to the Russian border so supply lines are less of an issue for the attackers - earlier on they were nearly over-run as well but liberal use of RPGs seems to have changed that - hope they've got plenty more in supply. How long they can hold out and how costly they make it for Russia could be a significant tipping point in a much wider scheme of things.