“The Committee has significant concerns about the technical challenges facing MSR and potential further impacts on confirmed missions, even before MSR has completed preliminary design review,” stated the Commerce, Justice, Science, and Related Agencies subcommittee in its report on the budget.
Every big program is appropriated annually; this isn’t a death knell, it’s just a vote of no confidence in the way things are. Proposed budget Is probably enough to keep the lights on during a reorg and rethink of the current mission scope, it’s just not enough to make forward progress. If they can get back in the box, I’d expect future appropriations to match the cost challenge Congress gave.
Of all the stupid things that Congress does, this feels…less stupid than usual. Usually they’d just cancel it outright.