George Bush just did a short public statement after his Cabinet meeting, billed as his remarks of condolence for the Minneapolis I-35W bridge collapse. Here's the text. It's actually 2 short paragraphs about the bridge, and then what was clearly a long-prepared rant about how Congress won't do what he wants on the budget, complete with tiresome calculations that revolve around the fact that it's easy to make small percentages of the US economy sound like big scary numbers (e.g. "Democrats in Congress would have spent an extra $300,000 since I began these remarks").
The decision was thus made by him or his handlers that this budgetary stunt was going ahead, disaster in Minnesota bedamned.
UPDATE: Holden says the word count is 141 words on the bridge collapse, 504 words blasting Dems on the budget.
FINAL UPDATE: Bush enthusiast Captain Ed describes the statement as "obviously impromptu." Not impromptu enough to have decided to dump his canned statement about the budget.