President Donald Trump has not yet been vindicated. Only his reelection will provide that condition so rare in the modern era of politics.
But with the conclusion of former special counsel Robert Mueller's testimony on Wednesday, Trump has decisively repulsed the attempt to deny him the opportunity to win that vindication at the polls in November 2020. Indeed, the president is now obviously, and with a high probability of success, going on the offensive.
Politics is not war, but the history of war can provide useful analogies to understanding politics. Twice European powers embarked on attempts to conquer Russia — the French under Napoleon during the 19th century and the Germans under Hitler during the 20th.