During a nightly address on Sunday, Ukraine President Volodymyr Zelenskyy thanked U.S. House of Representatives Speaker Nancy Pelosi and the congressional delegation for visiting Kyiv and affirming the U.S. commitment to helping Ukraine. "We are grateful to all partners who convey such important and powerful signals of support for Ukraine to the world and to Russia by visiting our capital in these conditions and at such a difficult time," Zelenskyy said. Zelenskyy said he and Pelosi shared "very substantive negotiations" that spanned four hours "on defense supplies, macro-financial assistance, sanctions policy, political cooperation." The Ukrainian leader also expressed his appreciation...