ICE leadership has faced intense pressure from the White House to increase arrests of migrants who are living in the U.S. illegally or under one of several temporary immigration programs the Trump administration is seeking to dismantle.
Stephen Miller, the White House’s deputy chief of staff, said Wednesday on Fox News that the administration is pushing ICE to carry out “a minimum” of 3,000 arrests per day — a target that would amount to an unprecedented expansion of immigration enforcement.

Trump administration shakes up leadership at ICE amid frustrations with arrest, deportation levels, sources say
The Trump administration is replacing the head of the ICE branch that carries out arrests and deportations, according to three sources.
https://www.cbsnews.com/news/trump-administration-shakes-up-ice-leadership-over-deportation-levels