George F. Will: Mueller’s report makes a normal election possible in 2020

President Donald Trump waves as Israeli Prime Minister Benjamin Netanyahu leaves the White House in Washington, Monday, March 25, 2019. (AP Photo/Manuel Balce Ceneta) Washington • Robert Mueller’s report is a gift to the nation, which now knows what was already a reasonable surmise: that its chief executive’s unlovely admiration for a repulsive foreign regime, Vladimir Putin’s, is more a dereliction of taste and judgment than evidence that he is under that regime’s sway.

The report is an even larger gift to the nation because it might help stabilize the Democratic Party — if the party reacts more reasonably to it than most of the party’s most conspicuous presidential candidates have been…