For President Trump, the case built by Democrats over his alleged effort to recruit foreign help for his reelection effort isn't just a "WITCH HUNT," it's "treason." It isn't just "presidential harassment," it's an invitation to "Civil War." The president is bringing the rhetorical heavy artillery to the most serious challenge to his presidency in nearly three years. Expanding on the lexicon of outrage and victimhood honed during the probe into Russian interference in the last election, Trump is invoking the idioms of the country's beginnings. Ratcheting up of his rhetoric is also indicative of Trump's tendency to interpret any...