Bongino tweet: Wow. Fascinating. Was she colluding with the Obama administration? #TheMoreYouKnow

He knows something - he would not hint about something without a good idea that there might be some truth to the rumor.

https://twitchy.com/gregp-3534/2018/07/22/reuters-alleged-russian-agent-maria-butina-met-with-government-officials-during-obama-administration/