A critical food assistance program will soon halt for millions of Americans in need and air traffic controllers will miss a paycheck this week as the government shutdown enters its fourth week -- with all eyes on congressional lawmakers to see if the added pressure will be enough to push them to strike a deal.

The Department of Agriculture posted a notice on its website that Supplemental Nutrition Assistance Program benefits will not be issued on Nov. 1 amid the ongoing government shutdown, saying "Bottom line, the well has run dry."

SNAP, often referred to as "food stamps," serves roughly 42 million low-income Americans.

SNAP has traditionally been entirely federally funded, but is administered by states. That means the shutdown's impact on SNAP and when benefits will start to dry up

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