A federal government shutdown is nearing. Here’s a guide for what to expect.

WASHINGTON — Congress’ failure to pass a short-term government funding bill before midnight Tuesday will lead to the first shutdown in nearly seven years and give President Donald Trump broad authority to determine what federal operations keep running — which will have a huge impact on the government, its employees, states and Americans.

A funding lapse this year would have a considerably wider effect than the 35-day one that took place during Trump’s first term and could last longer, given heightened political tensions.

The last shutdown didn’t affect the departments of Defense, Education, Energy, Health and Human Services, Labor and Veterans Affairs, since Congress had approved those agencies’ full-year funding bills.

Lawmakers had also enacted the Legislative Branch appropriations bi