The issue is not that Trump met with Putin. The issue is that Trump met with Putin without American witnesses — except for his wife Melania. Trump didn't even bring his own translator.
Trump keeps meeting with Russian officials without other Americans present.
Trump confiscated the notes of the American translator on the one occasion such a translator was present.
What is Trump trying to hide?
This is not a question Trump can be allowed to evade.
He is not running his own business, he is running the country. He does not get to whisper sweet nothings into Putin's ear, or hear sweet nothings from Putin in his own, without other Americans knowing what was said.
A normal president is entitled to keep secrets for the good of the country. However, Trump is not a normal president. He has repeatedly demonstrated that he cannot be trusted to put the nation's interests before his own. He also has never explained his unfathomable tendency to favor Russia and Putin in defiance of both national opinion and his own intelligence agencies' urgent recommendations.
Absent a clear and convincing explanation, we can only assume that Trump is acting contrary to American interests when he holds these private, unwitnessed discussions.
Trump the traitor? That may piss you off. But what else can we conclude when he goes to such unprecedented and insane lengths to keep other Americans (besides his wife) from hearing what he and Putin say?
Either Trump comes clean or he gets comfortable with "Trump the traitor" as his official title.