WASHINGTON (AP) — A bipartisan coalition on the Senate Appropriations Committee moved Thursday to roll back House GOP-backed cuts to Amtrak, transportation projects and affordable housing projects, but pressures elsewhere in the budget may make the funding levels unsustainable as the massive $108 billion spending bill moves ahead.

The transportation and housing bill was targeted by House Republicans for $1.8 billion in cuts relative to current program levels; the Senate measure is about $2.4 billion above the House measure and more than $600 million above current spending.