WASHINGTON, Oct. 23 — Few Americans know as much about the farm bill as Senator Tom Harkin, Democrat of Iowa, the chairman of the Senate Agriculture Committee. So it was not trivial, with the bill up for renewal this year, when Mr. Harkin spoke forcefully about the need to overhaul federal farm subsidies.
"We have to consider new ideas," he said in a conference call with reporters in June. "We should not cling to a system that channels ever larger commodity payments to a relatively few, with two-thirds of American farmers getting none at all."