CNN’s chief data reporter said a sharp rise in public approval for President Donald Trump’s immigration policies emboldened his decision to send 2,000 National Guard troops to Los Angeles amid violent protests over immigration enforcement.

During a Monday segment on CNN News Central, data analyst Harry Enten explained that Trump’s net approval on immigration has experienced a dramatic shift since his first term — it has moved from negative 21% in 2017 to plus-1% today, according to aggregate polling.