COURTESY BY: https://www.dawn.com/ United States President Donald Trump on Friday prepared to return to the campaign trail with a pair of weekend rallies after his Covid-19 diagnosis sidelined him for a week in the race against Democratic nominee Joe Biden for the White House. The Republican president, who announced he had been infected with the novel coronavirus on October 2 and spent three nights in a military hospital receiving treatment, said late on Thursday he was feeling “really good” and, with a doctor’s blessing, aimed to campaign in Florida on Saturday and…