If you pay attention to the mainstream media, you probably think that the only thing the Democrats (and some Republicans) care about is insuring the continued funding of Obamacare. Is it important to them? Yes, but it is just the beginning of an even bigger fight.
The democrats enter the debt ceiling fight with the stated position that THEY would rather see the government shut down than to try to govern without huge increases in spending. This year’s levels are simply not enough. Heritage has an excellent article on the topic here.
The opening salvo was Nancy Pelosi saying that there was nothing in the budget left to cut. This has now been picked up and amplified by others in party leadership.
For my own part, I say “Go for it”. I am sure that the USA can get by without government. (As you know, essential services must continue.)