The Biden administration is turning a lower percentage of border-crossing migrants back into Mexico

Biden administration officials say their new immigration policies have discouraged many migrants from trying to cross the border since the Covid ban known as Title 42 ended in May.

But an NBC News review of border crossing data shows that the Department of Homeland Security is also expelling fewer migrants per day back to Mexico than it was in the last full month before the end of Title 42.

On average, about 1,000 migrants have been sent back across the border into Mexico since Title 42 ended May 11, compared with nearly 3,000 a day in April.

As a proportion of total border crossers, about 14% of undocumented migrants caught crossing into the U.S. each day in July were sent back into Mexico, down from a daily average of 32% in April.