This weekend, first lady Jill Biden is traveling in Eastern Europe, meeting with Ukrainian refugees, humanitarian aid workers and others impacted by Russia's war in Ukraine. As the Biden administration continues to express its unwavering support for Ukraine's battle to preserve its independence, the first lady's trip is another opportunity to demonstrate America's commitment to Ukraine. It also will serve as an important reminder to all American and NATO allies that US commitment to Ukraine will extend well into the postwar period -- whenever that might be. Jill Biden's first ladyship is a long way from cookie bake-offs and state...