Roughly 420,000 sovereign employees are operative but pay, and another 380,000 have been furloughed and are temporarily out of a job. Although lawmakers have typically authorized backpay retroactively after prior shutdowns, there is no pledge a divided Congress would do so this time.
Article source: https://www.huffingtonpost.com/entry/trump-freezes-federal-pay-as-shutdown-grinds-on_us_5c27d37de4b0407e90833219