Yes, it'll be very beneficial to have a president that advocates following public health experts' guidelines.
All the participants and staff tested negative for the coronavirus within two days of the event and wore N95 masks. The arena was divided into three different scenarios, one with no restrictions, one with moderate social distancing restrictions and one with strict restrictions. The results were promising, suggesting "low to very low" impact on the spread of coronavirus under specific conditions: adequate ventilation, strict hygiene protocols, social distancing and limited capacity.
While the physical risks were low, the study concludes, the risk of airborne exposure was higher than expected.
While vaccines are still the most promising protection against the coronavirus, the experiment shows that the guidelines recommended by public health experts work: if you follow them.