The Affordable Care Act -- also known as Obamacare -- could lead to the first federal government shutdown in 17 years.
Saturday night the Republican-led House passed a bill that would avert a shutdown, but that bill also includes a one-year delay of Obamacare. That's something the Democratic-led Senate will not pass.
The impact of the impending shutdown reaches far and wide. Programs like Head Start and women, infants and children will lose funding.
The IRS will collect taxes, but the rest of its public operations will cease. Moderate income Americans and small businesses will cease.
National parks and Washington, D.C. landmarks like the Smithsonian Museum, Washington Monument and the National Zoo will also close.
Services that will continue, no matter what, include all air travel -- TSA screening, passports and visas, the federal courts, mail service and homeland security.
The shutdown is the result of a game of chicken the Republicans are willing to play as a way to stand up against Obamacare.
"The American people overwhelmingly reject Obamacare because they understand it is not working," said Senator Ted Cruz on Meet the Press. "The only people who aren't listening to their argument are the career politicians in Washington."
To that end, House Republicans Saturday night passed a bill that would delay the individual Obamacare mandate, do away with the taxes on medical devices along with a promise not to shut down the government.
Congressman John Conyers said Senate Democrats won't go along with that.
"It was a nice stage project, but I don't think that we are going to be pursuing it much longer, but stay tuned."