It depends on what the topic would've been. It blows a hole on the narrative of "not knowing any Russians" or "not intentionally conspiring to influence the election/commit crime". It's like associating with some goons that rob a bank, ending up rich out of nowhere, saying you never knew them, and the cops finding out that you wanted to meet them before the heist. So it's kind of a big deal if their defense was "well, the Russians did such and such, but they worked independently w/o our knowledge." Kind of turns manslaughter into premeditated 1st degree murder.
https://www.nytimes.com/2018/09/01/us/politics/deripaska-ohr-steele-fbi.html Agents Tried to Flip Russian Oligarchs. The Fallout Spread to Trump.
https://www.theguardian.com/us-news...r-russia-inquiry-donald-trump-written-answers https://www.washingtonpost.com/poli...01309990777_story.html?utm_term=.0d56e581fa16 Mueller tells Trump’s legal team that he will accept written answers on campaign questions
Looks like Credico is not cracking jokes about the investigation any more Pence willing to sit down with Mueller https://www.cbsnews.com/news/mike-p...sit-down-with-special-counsel-robert-mueller/ http://thehill.com/homenews/sunday-...ce-more-than-willing-to-sit-down-with-mueller
https://www.buzzfeednews.com/articl...ower-meeting-suspicious-transactions-agalarov A Series Of Suspicious Money Transfers Followed The Trump Tower Meeting Investigators are focused on two bursts of banking activity — one shortly after the June 2016 meeting, the other immediately after the presidential election. The June 2016 meeting at Trump Tower has become one of the most famous gatherings in American political history: a flashpoint for allegations of collusion, the subject of shifting explanations by the president and his son, countless hair-on-fire tweets, and boundless speculation by the press. But secret documents reviewed by BuzzFeed News reveal a previously undisclosed aspect of the meeting: a complex web of financial transactions among some of the planners and participants who moved money from Russia and Switzerland to the British Virgin Islands, Bangkok, and a small office park in New Jersey.