Congresswoman Cori Bush has spent a night on the steps of the US Capitol to protest against the end of a Covid-related moratorium on evictions.
The House Democrat said shortly before the freeze expired at midnight Saturday that seven million people would be "at risk for evictions" over unpaid rent.
The freeze was imposed 11 months ago in part to halt the spread of infections through crowding in shelters.
Ms Bush, who was once homeless, wants the measure to be extended.
In a tweet early on Saturday, she wrote: "Good morning. The eviction moratorium expires tonight at midnight. We could have extended it yesterday, but some Democrats went on vacation instead.
"We slept at the Capitol last night to ask them to come back and do their jobs. Today's their last chance. We're still here."
