The latest report from the Labor Department released Thursday shows the figure for last week is much higher than the previous record of 3.3 million reported for the previous week.
The new restrictions block 90,000 trips a day or $2.1 million worth of goods. Towns along the world's busiest border have never struggled so much—not even after 9/11.
Sunday's announcement was a tacit acknowledgment the president had been too optimistic just days earlier when he said he hoped reopen the economy by Easter on April 12.
Health experts have made clear that unless Americans continue to dramatically limit social interaction the number of infections will overwhelm the health care system.
