President Joe Biden speculated on Thursday that some Republican senators may change their minds during the impeachment trial of his former rival, former President Donald Trump. “My guess is some minds may be changed,” Biden told reporters at the White House. Biden said he did not watch any of Wednesday’s hearing live but did take in news coverage about what was presented. Biden said he was working hard, “going straight through last night until a little after nine.” He said he spoke to China’s leader Xi Jingping over the phone for two hours. Biden was asked multiple times about the trial. His first answer was, “I’m focused on my job … to deal with the promises I made. And we all know we have to move on.” Democrats must convince at least 17 Republican senators to vote to convict Trump or he will be acquitted. They may need to sway even more, …