Lyndon Johnson actually said...
I hardly know whether to scowl or to smile.
Context
Remarks at the Swearing In of Gardner Ackley as Chairman and Arthur Okun as Member of the Council of Economic Advisers
11/15/1964
Remarks at the Swearing In of Gardner Ackley as Chairman and Arthur Okun as Member of the Council of Economic Advisers
11/15/1964