Former US president Donald Trump has made his first public appearance since an assassination attempt, appearing at the Republican National Convention with a bandage over his right ear. Trump, who was confirmed as the Republican presidential candidate earlier on Monday, entered the convention to a standing ovation. He then posed on stage with his vice presidential running-mate JD Vance. It was Trump’s first public appearance since a campaign event in Pennsylvania on Saturday, where a shooter was able to climb to an elevated position with an assault rifle and fire a number of shots at Trump, cau…