There is a fantastic and incredibly modern quote from White in Benn Steil's book on Bretton Woods:
"The cry of “loss of confidence” is largely a smokescreen let loose by certain conservatives who are traditionally opposed to almost any Government expenditure, who object to any increase in taxes, and are too shortsighted to know that the perpetuation of the present level of unemployment constitutes de most dangerous threat to their own interests ... The statement that the bond market could not absorb Government bonds has been made ever since the first unbalanced budget, yet today Government bond prices in the United States are higher than ever. ... If [companies] do not employ the potential purchasing power [of the unemployed], the Government can do so at virtually no expense to the community."
Of course several would dismiss White as a commie spy, even though the best evidence is that we do not know if he was a spy at all. But it's easier to blacklist Keynesians as commies than to deal with their arguments.