At the end of a chilling and well written TPM editorial on the news of Jared Kushner’s asking the Russian Ambassador to let him use their secure phone lines — and doing so during December, before his father-in-law had even been inaugurated as president — there is this passage:
We’ve wondered for months why Mike Flynn would communicate with Sergei Kislyak on phone lines he would have known – indeed, was explicitly warned – would be monitored by US intelligence. This mystery seems at least partly solved. He and Kushner knew they needed a mode of communication with Moscow that would remain secret from US intelligence, the US military etc. They asked Kislyak to help them set it up.
We shouldn’t assume they didn’t succeed.
By the way, you need to read this story by Frank Vyan Walton if you haven’t already.