Washington (AFP) – Former US president Donald Trump was set to appear at a rally Friday to endorse a political candidate accused of sexually assaulting eight women including a state senator. Charles Herbster, a 67-year-old multimillionaire cattle-breeding executive, has denied the allegations but faces a backlash from conservatives in Nebraska, where he is vying to be the next governor. State senator Julie Slama told the Nebraska Examiner two weeks ago that Herbster had reached up her skirt and groped her during an event in 2019, while seven women made misconduct accusations anonymously. “I am…