A brutal heat wave forces U.S. cities to cancel Fourth of July celebrations as America approaches its 250th birthday, Russia launches nearly 600 missiles at Kyiv killing at least 27 people in retaliation for Ukrainian strikes on oil refineries, and Democratic infighting over progressive candidates threatens the party's chances of winning back the House this fall. Russia conducted nearly 600 missile and drone strikes on Kyiv overnight, killing at least 27 people, in response to Ukraine's systematic campaign targeting Russian oil refineries and energy facilities since March.