Explainer: What can Mueller tell U.S. lawmakers that we do not already know?

When Robert Mueller testifies to the U.S. Congress on Wednesday, Democratic lawmakers are expected to try to pin down the former special counsel on a crucial question: did he intend for them to carry on where he left off in his investigation of President Donald Trump and the Russians?

from Reuters: U.S. https://ift.tt/2y5nPho