The Transportation Security Administration plans to begin closing a handful of security checkpoints at airports around the United States as soon as this weekend in response to staff shortages triggered by a partial federal government shutdown now in its third week.

Almost a third of the $2 trillion that U.S. states spend each year comes from Washington, so the partial shutdown of the federal government would seem to spell major financial trouble in America’s statehouses.

The ongoing partial government shutdown will cut U.S. economic output by about 0.1% every two weeks, the chairman of the White House Council of Economic Advisers said.

Filings for U.S. unemployment benefits rose to a four-week high at year’s end, amid holidays that tend to make the figures more volatile and a partial government shutdown that may have spurred federal workers to request funds.