Eric Trump told London's Daily Telegraph that his father will not be "pushed around" by Vladimir Putin, adding that his father won't take being crossed. The younger Trump also said his "heartbroken and outraged" sister Ivanka spurred their father to launch the airstrikes.

Why it matters: Trump has faced heat since the campaign for his family's close involvement in his operations. With his children and son-in-law Jared Kushner playing this increased role in a wartime setting, such scrutiny will only intensify.