DES MOINES, Iowa — As Iowa surpassed 100,000 confirmed coronavirus cases Monday and remained the fourth-highest state for rate of infection, the mayor of Des Moines expressed concern that President Donald Trump’s rally this week at the city’s airport could become a super-spreader event.

The state averaged 1,300 new cases per day over the past four days, and during that time there were an additional 46 deaths. As of Monday morning, Iowa had reported 100,052 confirmed cases of COVID-19 and 1,464 deaths from the disease since the pandemic started.

Trump plans a Wednesday rally at the Iowa Air National Guard hangar at the Des Moines International Airport. He acknowledged Oct. 2 that he had tested positive for COVID-19, and he now plans to resume campaigning despite skepticism about whether he could spread the virus.

Des Moines Mayor Frank Cownie told The Des Moines Register on Sunday that he’s worried that Trump’s visit could become a super-spreader event.

Iowa Democratic Party Chair Mark Smith said the state should not be hosting the event.

“In no way, shape or form should Governor Reynolds or any of our Republican leaders allow for this event to happen. Iowans need a President who will put the health and safety of the country above their own ego,” he said in a statement.

Trump campaign spokesman Tim Murtaugh said the event will be in an open door airplane hangar with temperature checks and masks.