The eldest son of President Trump was referring to a 2017 tweet the Somali American congresswoman made following a deadly truck bomb blast in Mogadishu.
With double the number of airstrikes of 2016 and 400 U.S. soldiers on the ground, Washington's role in Mogadishu is expanding.
Washington has been fighting Al-Shabab for a decade in Somalia, but there's no end in sight.
The death is the first U.S. military casualty in Somalia for more than 20 years.
The U.S. intervention in Somalia is not remembered fondly, but it saved thousands of lives.