From a reader:

If I read Drum correctly, it’s wrong for a politician to note that the preferred outcomes of terrorists may align with the political interests of one side of the aisle.
Funny.
I kinda remember a certain politician who suggested that the Oklahoma City Bombing was attributable to talk radio hosts like Rush Limbaugh and other “purveyors of hatred and division.”
Of course, I never expect to hear Drum denounce such utterly baseless and blantantly self-serving remarks of Bill Clinton.