Washington( CNN) In the end, Robert Mueller's silence betrayed him.
But now, the commotion triggered in the wake of Mueller's Russia investigation raises the question of whether his time-honored techniques have left him vulnerable to exploitation in a new political era of hyper-partisanship and self-aggrandizing.
And the dissension is increasing calls for Mueller to break his silence in the most public way — in hearings being demanded by House Democrats, which would become one of the most hotly anticipated congressional appearances in years.
