There's a ton of proof that Joke met with Hunter's business partners and clients. Photos, White House visitor logs, e-mails, texts, eye witness accounts, etc. Only someone who's lying or studiously oblivious could claim otherwise. The only semi-unanswered question is What was the purpose of those meetings? Since they were numerous, often lengthy, and relatively frequent, it would be to the reasonable person that they weren't talking about the weather or the latest movie release in theaters...
None of that is "hearsay" or "innuendo." Those are facts. So, asking KJP what the purpose of those meetings was, is a perfectly valid question. Her response--running away--makes sense only if the honest answer to that question is Joke was involved in Hunter's business schemes. It's pretty damn obvious she didn't want to answer such questions because lying in answer to them could obviously come back to bite her in the ass as a co-conspirator to cover up corruption and illegal activity.