Although President Donald Trump has frequently called the situation at the U.S.-Mexico border a "crisis," government data shows that arrests are down compared with the Obama administration as most illegal immigration occurs through overstaying temporary visas.
As the government shutdown enters day 18 with no resolution in sight, Trump has repeatedly overstated the severity of illegal immigration at the border in order to convince Congress to approve more than $5 billion in funding for a border wall.
"The crisis of illegal activity at our Southern Border is real and will not stop until we build a great Steel Barrier or Wall," he tweeted Dec. 22, the day the shutdown began.
During fiscal 2018, which ran through the end of September, Customs and Border Protection (CBP) apprehended 396,579 undocumented immigrants at the southern border. That figure is lower than the 413,377 average yearly apprehensions during former President Barack Obama's time in office and only a fraction of the 1,643,679 apprehensions in 2000, when Bill Clinton was in office.