Some Flights Canceled Out Of Phoenix Due To Heat

More than a dozen flights have been canceled out of Phoenix on Tuesday because of extreme heat. American Airlines canceled a number of regional flights using the Bombardier CRJ aircraft, which can't operate above 118 degrees.

Tuesday's high is expected to reach 120 degrees. Here & Now's Jeremy Hobson speaks with MSNBC's Ali Velshi (@AliVelshi) about how planes are impacted by heat.