White House press secretary Karine Jean-Pierre on Thursday swiftly rebuked Fox News’ Peter Doocy for ignoring a dramatic decline in illegal crossings at the United States-Mexico border. During a press briefing, Doocy needled Jean-Pierre over Vice President Kamala Harris’ work in trying to address the root causes of mass migration to the southern border that have caused President Joe Biden political headaches for the past four years. However, Jean-Pierre quickly retorted that Doocy was ignoring good news about illegal migrant crossings. Want more breaking political news? Click for the latest he…