Now that there is a new team at the White House, guess who is knocking down straw men left and right? To listen to President Obama, a veritable army of naysayers has invaded Washington, urging him to sit on his hands at the White House and do nothing to address any of the economic or national security problems facing the country.

“There are those who say these plans are too ambitious, that we should be trying to do less, not more,” Mr. Obama told a town-hall-style meeting in Costa Mesa, Calif., on March 18. “Well, I say our challenges are too large to ignore.”

Mr. Obama did not specify who, exactly, was saying America should ignore its challenges.