Republican presidential candidate Donald Trump has promised to fire special prosecutor Jack Smith, who has filed two federal cases against the former president, if he wins the US election on November 5. “It’s so easy. I would fire him within two seconds,” Trump said when asked by conservative podcaster Hugh Hewitt on whether he would pardon himself or fire Smith. Smith, who was appointed by US Attorney General Merrick Garland, filed two cases against Trump. One is a four-count indictment alleging electoral fraud in connection with the January 6 riots in 2021. The other deals with top-secret do…