The Obama administration won’t be sending a witness to defend the economic-stimulus package before a House Oversight Committee panel Wednesday.

The committee is holding a hearing on the impact of the stimulus package, which President Barack Obama signed almost two years ago. Testimony will come from a lineup of conservative economists, plus Josh Bivens of the left-leaning Economic Policy Institute, who was picked by committee Democrats.

Rep. Jim Jordan (R., Ohio), who is running the hearing, had asked Jared Bernstein and Christina Romer, who played major roles in preparing the package to testify or suggest another witness to represent the White House. Both declined…