Because if the government shuts down, Obama gets blamed for it as the man in charge.
As usual yo uare wrong:
"According to the poll, if a government shutdown lasted only a few days, 11% of Americans think that would cause a crisis and another 38% forecast major problems. But if a shutdown lasted a few weeks, the number who think the country would face a crisis rises from 11% to 31%, and the number who believe major problems would result increases a bit to 43%.
So whom would Americans blame if the government shutdown?
"Only a third would consider President Barack Obama responsible for a shutdown, with 51% pointing a finger at the GOP - up from 40% who felt that way earlier this year," says CNN Polling Director Keating Holland."