Washington (CNN) Apprehensions at the southern border decreased sharply in January, according to statistics obtained by CNN -- a drop in line with yearly seasonal trends but that could give President Donald Trump an early talking point in his efforts to ramp up border security.
According to preliminary Customs and Border Protection numbers for January obtained by CNN but not yet released to the public, family unit apprehensions decreased by 42%, unaccompanied minors were down 39% and total apprehensions decreased by 27%.
Month-to-month numbers in apprehensions can be misleading. According to data for the past four years, apprehensions typically drop in January and did so sharply in 2016.
Next month's data could be critical in interpreting whether the drop was due to seasonal trends or something bigger. The amount of migration north through Mexico is also tied to the conditions in Central America, where many migrants are fleeing violence and drug cartels.
The numbers also do not take into account what are called inadmissables -- migrants who present themselves at the border and are deemed unable to enter the country, often due to lack of authorization. Apprehensions refer to those removable aliens who are arrested.
Still, Trump supporters are likely to see the numbers as vindication of his hardline approach to immigration, an indication that his tough talk and policy proposals are already deterring migrants from coming in.
COMMENT: What President Trump is doing has been needed for years. He is toughening border enforcement and planning to build new defenses against illegal immigration, while welcoming migrants who are legal and fully vetted. Polls show his policies in this regard are popular.