Dangerous and potentially record-setting heat wave to scorch millions this July Fourth

Millions of Americans across the eastern half of the US are facing a prolonged stretch of dangerous and potentially record-breaking heat as Americans get set to head outdoors to celebrate the country’s 250th Independence Day.

​ Millions of Americans across the eastern half of the US are facing a prolonged stretch of dangerous and potentially record-breaking heat as Americans get set to head outdoors to celebrate the country’s 250th Independence Day. Read More Breaking News, Latest News and Videos | CNN