Vice President JD Vance speaks during a Republican National Committee's Midterm Rally at the Mid-America Center, Friday, Sept. 18, 2026 in Council Bluffs, Iowa. (Anna Moneymaker/Pool Photo via AP)

Vice President JD Vance arrives to speak during a Republican National Committee's Midterm Rally at the Mid-America Center, Friday, Sept. 18, 2026 in Council Bluffs, Iowa. (Anna Moneymaker/Pool Photo via AP)

Iowa Republican gubernatorial candidate Zach Lahn, left, and Iowa Republican Congressional candidate Chris McGowan listen as Vice President JD Vance speaks during a Republican National Committee's Midterm Rally at the Mid-America Center, Friday, Sept. 18, 2026 in Council Bluffs, Iowa. (Anna Moneymaker/Pool Photo via AP)

Vice President JD Vance departs after speaking during a Republican National Committee's Midterm Rally at the Mid-America Center, Friday, Sept. 18, 2026 in Council Bluffs, Iowa. (Anna Moneymaker/Pool Photo via AP)

Vice President JD Vance speaks during a Republican National Committee's Midterm Rally at the Mid-America Center, Friday, Sept. 18, 2026 in Council Bluffs, Iowa. (Anna Moneymaker/Pool Photo via AP)

In this photo provided by the Ukrainian Emergency Service, a firefighter, right, comforts a woman after her home was damaged in a Russian air attack in Odesa, Ukraine, Thursday, Sept. 17, 2026. (Ukrainian Emergency Service via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy, top center right, and EU officials attend a summit in a Carpathian 8 Summit in Bukovel, western Ukraine, Friday, Sept. 18, 2026. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Poland's Prime Minister Donald Tusk, right, is welcomed by Ukraine's President Volodymyr Zelensky and his wife Olena Zelenska during a Carpathian 8 Summit in Bukovel, western Ukraine, Friday, Sept. 18, 2026. (Ukrainian Presidential Press Office via AP)