What do we know about the Mueller investigation so far? (David Corn)

It's been a year since Special Counsel Robert Mueller began his investigation into collusion between the Trump campaign and Russian operatives in the 2016 election and (at least as far as public perception goes) the picture is foggier than ever. According to an online survey of registered voters released Wednesday by the polling  group Navigator, 59 percent of Americans don’t believe Mueller has uncovered any criminal activity despite five guilty pleas and 17 criminal indictments already handed down by the special counsel and his team. With the constant barrage of breaking news on the Russia investigation leaving even professional political pundits flummoxed, it’s not hard to see why Mueller’s efforts are being misunderstood if  not outright ignored by anyone who isn’t a political junkie. In this week’s TrumpWatch, Jesse takes a look at what we know one year in with David Corn, Washington bureau chief for Mother Jones and the co-author of the book “Russian Roulette: The Inside Story of Putin's War on America and the Election of Donald Trump.”