Harris stepping in for Biden at Ukraine summit as she takes growing role in heat of 2024 campaign The Associated PressWorld leaders to gather in Swiss resort in attempt to forge Ukraine peace plan The GuardianUkraine war: Kyiv seeks show of support at giant Swiss summit BBC.comWorld leaders meet in Switzerland as Ukraine seeks aid amid war with Russia Al Jazeera EnglishUkraine’s Global Diplomatic Flurry Fails to Outflank Russia The Wall Street Journal