Heat warnings in effect for millions across the U.S. this week; Mom creates camp for kids with chronic pancreatitis.

Raging New Mexico wildfires burn hundreds of structures. Tropical Storm Alberto takes aim at Mexico, Texas. Russia's Putin, North Korea's Kim Jong Un sign defense pact. Northeast broils under brutal heat wave. After Willie Mays' death, Rickwood Field game takes on renewed significance.House investigates misconduct allegations against Matt Gaetz, and other top headlines. Opal Lee, the Grandmother of Juneteenth, leads annual Walk for Freedom.  Hunters help track tick-borne diseases.