As the "Great America Act" faces a pivotal Senate test, Elon Musk's opposition emerges at a crucial juncture. With Democrats anticipated to unanimously vote against the bill, Republicans can only tolerate a maximum of three dissenting votes among their 53 Senate seats to avoid its failure. Given the impending US debt ceiling, Musk's criticism, if it results in the bill being stalled in Congress, could expedite the onset of a debt default.