Illegal border crossings drop 40 PER CENT in Trump's first full month as president: Homeland Security says it's the lowest total in nearly five years

• In January DHS apprehended 31,578 people sneaking across America's southern border; that number was just 18,762 in February
• Dramatic shift came as Donald Trump had his first full month in the White House
• The government typically sees a 10 to 20 per cent increase between January and February
• Immigration detention centers in Texas have hundreds of empty beds