A new analysis says based on what we can see Musk is still wrong saying they will save 150 billion it will be less than that. But when you factor in the costs of salary to DOGE, all the travel, all the overhead, all the legal bills and all the other ancillary stuff they will actually almost assuredly spend more than they save.
And that assumes they haven't done serious damage to anything that will have to be fixed at taxpayer cost, which they almost certainly have