The three states have experienced their highest ever 14-day averages of new cases: Here are the latest developments in each state.
The students were found to have taken "willful and knowing actions that threatened the safety of our campus and community."
"Masks are just a symbol of deception and oppression," Saundra McDowell wrote on Facebook.
North Dakota, South Dakota, Iowa, Montana, Arkansas, Missouri, Indiana and Illinois are at risk of a spike in coronavirus cases.
In Missouri 49 percent of those polled say they plan to vote for Trump, versus 44 percent who say they will vote for Biden.
Average daily new cases have been on an upward trend in several states in the Midwest, including Iowa, Missouri, Kansas and Nebraska.
A new report by the American Academy of Pediatrics and Children's Hospital Association showed a 40 percent increase in COVID-19 cases diagnosed among U.S. children during the last two weeks of July.
A crowd of protesters gathered outside the headquarters of the Ferguson Police Department six years after unarmed Black 18-year-old Michael Brown was shot dead by a Ferguson police officer.
Missouri voters ousted a Democratic dynasty and embraced someone who could become one of the most liberal members of Congress. The state also has signed off on a key element of Obamacare.
"Looking back in history, unfortunately, Hitler was right about what was taking place in Germany. And who was behind it," Steve West said on a radio show in 2017.
Police say the Bellefontaine Neighbors police officer thought he was buying cocaine and not the powerful opioid.
The woman was asked to leave the Incredible Pizza Company in St. Louis after refusing to wear a face mask.
Missouri voters Tuesday will decide whether to expand Medicaid through a ballot initiative amid the coronavirus health crisis.
Mississippi, Missouri, Alaska, Oklahoma and Louisiana have each seen an increase in the average daily new cases reported over recent weeks.
"This bloodshed must end. This bloodshed will end," Trump said.
Mississippi saw the largest jump in the country over the last 14 days.
All student activities have been canceled by the school through August 9 following the latest infections.
Mark and Patricia McCloskey, who are white, have been charged with felony unlawful use of a weapon after drawing guns on protesters marching past their mansion in St. Louis last month.
Mark and Patricia McCloskey were charged Monday with one felony charge each of the unlawful use of a weapon.
Missouri Governor Mike Parson said he is certain kids returning to schools will get infected with coronavirus, but they'll also "get over it" by resting at home for a few days.
Preston T. Foster, 23, allegedly repeatedly slammed a police officer's hand in the door at police headquarters as the officer was trying to leave Friday evening.
The woman's husband was also injured in the incident—along with four others—and taken to hospital.
Eric Greitens lashed out at "lefist radicals" and Republicans showing "cowardice" following a shooting on Monday night.
"They have the ability to do that as private citizens like everyone else," said Missouri Governor Mike Parson on Tuesday.
The U.S. reported more than 59,000 new infections on July 8, while Missouri, Tennessee, Texas, Utah and West Virginia set single-day records the same day.
A new poll shows Biden leading President Donald Trump by 2 points in Missouri, a state that hasn't gone to a Democratic presidential candidate since 1996.
Mayor Lyda Krewson read out the names and addresses of protesters backing calls to defund the police on a Facebook live broadcast.