More than 4,000 federal employees have been given layoff notices as the shutdown is ongoing, the Trump administration revealed in a court filing.

The Senate is expected to vote for a 10th time late Thursday morning on a House-passed bill to reopen the government as Democrats and Republicans remain dug in on Day 16 of the shutdown.

The agency that oversees the nation's nuclear weapons stockpile told a top GOP lawmaker that it plans to furlough 80% of its staff in the coming days to address a funding shortfall.