As far a obstruction of justice goes, there are no shoes. What you see is what you get and, as you already admitted, it is difficult to prove, nothing but opinions and interpretations. Bottom line, Mueller actually can't do a damn thing to Trump. Your only hope is that the Republican Congress impeaches Trump, needing a 2/3'ds majority in order to remove him from office. Even if this drags on into 2019 after the elections and Democrats win back a majority, are they going to have a 2/3'ds majority? And, even if they do, or get enough Republicans to vote with them and they actually do remove Trump from office, you've got President Pence, who is farther right than Trump. That's your very best case scenario. You guys are nothing but sinking in quicksand. No matter what you do you are sunk with reality and the reality is that even if both Trump and Pence are removed from office and either Hillary or Bernie were annointed president, they wouldn't be able to accomplish anything through the Republican Congress and the conservative leaning Supreme Court. As you already know, Republicans can dish out obstructionism and resistance just as well as the Democrats are doing now.