On Wednesday, Special Counsel Robert Mueller filed a large cache of evidence against former Trump campaign chairman Paul Manafort, and a former chief strategist for Sen. Bernie Sanders (I-Vt.) was all over it. Tad Devine, Sanders' chief strategist, appears from exhibit 5 onward. Mueller listed a memo from 2006 involving Manafort, Devine, and former Ukrainian President Viktor Vanukovych, Russian President Vladimir Putin's puppet in Ukraine. Mueller's evidence lists email after email between Devine and Manafort, connecting them both to Konstantin Kilimnik, a Putin-connected operative whom Manafort described as "my Russian brain." Devine's name appears a total of 21 times in...