The agency charged with carrying out President Trump's mass deportation promises has warned Congress it is short a whopping $2 billion for this fiscal year, Axios has learned. Why it matters: Immigration and Customs Enforcement (ICE) repeatedly has faced significant budget shortfalls in recent years.

A report from the Government Accountability Office found that ICE has regularly overspent in recent years, often pulling resources from other parts of DHS. Senator James Lankford

A number of tourists from European countries have been detained by ICE in recent weeks when attempting to enter the United States, their planned vacations instead turning into long stretches in detention. Experts say their arrests are an apparent escalation in enforcement action as President Donald Trump 's immigration crackdown rages on.