Federal employees received pay stubs with nothing but zeros on them Friday as the effects of the government shutdown hit home, deepening anxieties about mortgage payments and unpaid bills.

All told, an estimated 800,000 government workers missed their paychecks for the first time since the shutdown began.

Employees posted pictures of the pay statements on Twitter and vented their frustration as the standoff over President Donald Trump's demand for $5.7 billion for a border wall entered its 21st day. This weekend, it will become the longest shutdown in U.S. history.

"I saw the zeros in my pay s...