A pedestrian walks with a bag covering her face to block the sun during a heatwave in Houston, Texas.
Mandatory Credit:	Mark Felix/Bloomberg/Getty Images

A pedestrian walks with a bag covering her face to block the sun during a heatwave in Houston, Texas.
Mandatory Credit: Mark Felix/Bloomberg/Getty Images

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Here's why Maryland's primary results may not be known for days

It may take a few days, or even longer, to determine who will win Maryland's various primaries on Tuesday -- and that's because of how the state counts mail-in ballots.

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More than 100 million in the US face excessive warning or heat advisories as a dangerous heat wave continues

Heat alerts cover more than 20 states today and tomorrow across the Southern Plains and parts of the Northeast, and temperatures will soar above the century mark for 60 million people over the next week. All while a similar heat wave is bringing all-time record temperatures to Western Europe.