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Delta and other airlines have shown that their mask policies are not just a suggestion, going so far as to remove passengers from flights if they do not wear a mask.Passengers who refuse to wear a mask on Delta Airlines will no longer fly with Delta, according to internal communications."Although rare, we continue to put passengers who refuse to follow the required face-covering rules on our no-fly list," says Delta CEO Ed Bastian in an internal memo to employees shared with CNN.That has resulted in about 240 people banned from flying on Delta.The memo, dated August 27 and seen by several media organizations, was celebrating the opening of Delta’s new Salt Lake City hub, and included an update on the current state of the airline.Since implementing a mask policy in June, the number of passengers on the no-fly list has more than doubled. Bastian told CNN on August 7, "We've had well over 100 people that have refused to keep their mask on during the flight."That reportedly includes a former Navy SEAL who claims to have killed Osama bin Laden. Robert O’Neill tweeted about being banned by Delta Air Lines after removing his face mask during a flight.There are also recent stories about flights returning to gates when passengers remove their mask before take-off. Some passengers are removed if they refuse to put the mask back on.Delta requires passengers to wear a mask starting at check-in, and has asked passengers who cannot wear a mask because of health conditions to consider staying home. 1516

DES MOINES, Iowa (AP) — Iowa voters reelected Republican U.S. Sen. Joni Ernst to a second term on Tuesday after a heated race in which she portrayed herself as a conservative who was willing to work with Democrats.Ernst beat Democrat Theresa Greenfield, a Des Moines real estate developer.Ernst argued that she had been true to her deeply conservative beliefs as both a state legislator and a U.S. senator.She said she had been able to work with Democrats on issues such as veteran's health care and child care, though she also served in Republican leadership and has been an ardent supporter of President Donald Trump. 627

DEL MAR, Calif. (KGTV) - This weekend 47 teams from high schools around San Diego and other parts of the US will compete in the FIRST California Robotics Regional Championships.The event brings the teens together to test their engineering and science skills. The teams get six weeks to design and build a robot to complete a handful of tasks.But the technology isn't cheap, so many teams turn to local tech companies for donations.San Diego based tech-giant Qualcomm is the title sponsor of the competition. They also give money to individual teams. Organizers say the companies see it as a way to excite teens about careers in STEM."They look at this as their future workforce," says Regional Director David Berggren. "If we can get these kids invested in STEM fields now, they're going to be great future employees, and it's money well spent for the company."The actual dollar amounts aren't given, but some schools say companies donate thousands of dollars each year. Logos on t-shirts and team booths show companies like Apple, Qualcomm, Viasat, 3M, Solar Turbines, BAE Systems, leidos and more have made donations.In addition to the money, companies donate time, providing volunteers to mentor the teens through the design and building process. They work hands on with the teams, giving kids an up close look at careers in STEM fields."It's eye-opening, it's surreal," says Southwest High School Senior Alejandro Gendrop. "To not only have someone aid us with how we're supposed to organize our team, put it together, but also to get a view into the industry and how they work and how similar our work is to theirs, it's great."The competition in Del Mar is Friday and Saturday, and admission is free. Winners from this weekend advance to the national championship in Houston next month. For more information, go to http://casd.cafirst.org. 1853

Demi Lovato has entered rehab.The Grammy-nominated singer was released from Cedars-Sinai Medical Center in Los Angeles and has entered an undisclosed rehab facility, sources close to Lovato told CNN."Demi is committed to focusing on her health," one of the sources said.Lovato's representative did not immediately respond to CNN's request for comment.The 25-year-old singer took to social media Sunday to thank fans for the first time since her apparent drug overdose on July 24. 487

DAYTON, Ohio. (AP) -- A witness is describing the chaos that unfolded on the streets during the shooting in Dayton, Ohio.Anthony Reynolds says he and his friends were leaving a bar in the Oregon District around 1 a.m. Sunday when they heard the first gunshot.He says the gunfire was "rapid" after that and "people were just falling."RELATED: 9 killed, 26 wounded during mass shooting in Dayton, OhioThe 31-year-old Reynolds says he got a glimpse of the shooter, who he says was dressed in all black and carrying a large gun.Dayton Mayor Nan Whaley says the shooter was wearing body armor and had extra magazines for his .223-caliber rifle.Nine people were killed and dozens more were injured before police killed the shooter.RELATED: Mass shootings in the United States: When, where they have occurred in 2019 817