Complex sentence: Donald Trump, a Republican candidate held a rally on October 25,2016 at the parking lot of the museum in which 20,000 people attended, making Trump the first Presidential candidate ever to visit Tallahassee.
Split into simpler sentences: Donald Trump, a Republican candidate held a rally on October 25,2016. The rally was held at the parking lot of the museum in which 20,000 people attended, making Trump the first Presidential candidate ever to visit Tallahassee.