Democratic House leaders now support the change, which has been a priority for congressional Republicans for months.
For years, Congress has thwarted the Air Force's attempts to retire the iconic A-10 Warthog, but that is about to change.
Without enough money to fund aircraft maintenance and aircrew flying hours, Air Force Secretary Frank Kendall said, readiness rates would decline.
The $858 billion measure also includes a 4.6% pay raise for troops next year and plans to backfill munition stockpiles depleted by the war in Ukraine.
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