A witness who appeared Tuesday in former President Donald Trump’s criminal hush money trial just pulled back the curtain on a world that, according to legal analyst Lisa Rubin, can only be described with a single word: Sketchy. MSNBC host Chris Hayes and Rubin smiled as they discussed the salacious details shared by Keith Davidson, an attorney who said he bartered catch-and-kill deals with National Enquirer for clients Stormy Daniels and Karen McDougal, despite hesitations from the tabloid. “That is too sketchy for…the National Enquirer,” Hayes quipped. “You need to run this as an off-book o…