Pelosi and Mueller's Mush

House Speaker Nancy Pelosi is playing a sophisticated game. Since her Democrats took the House, she's the one who has steadfastly fought off a hasty plunge into the impeachment of President Donald Trump. In the process, she has appeared to resist the more volatile factions in her caucus, particularly the attention-grabbing newbies, along with impatient Democrats nationwide who have loudly demanded that she clear the way so they can drop the I-Bomb.

She will not like this comparison, but Pelosi has been the tortoise racing with her rabbits, her rabid-bunny fellow partisans. Except that it's all...