Fox News contributor Jonathan Turley joined "Your World" Monday to react to testimony from former Hunter Biden associate Devon Archer on then-Vice President Biden's involvement in his son's business dealings, warning the growing scandal could reach historic proportions.JONATHAN TURLEY: I think that it's the assumption is that he knew exactly what these meetings were about… it just strains credulity that he flies to China with his son and doesn't ask once, by the way, where are you going to go in China? You know, what are you doing business here that he makes all these calls to? These folks have dinners with foreign characters, and he doesn't say, who were those guys? Why were you meeting? It's just not very believable.