Bill Maher has ripped apart the Left’s “moral high ground” following the Pennsylvania shooting at this weekend’s Donald Trump rally. The former US President, who is hoping to return for another term later this year, was grazed by a bullet on his head while he spoke to fans and supporters at the rally. The 20-year-old shooter was killed at the scene after shooting at Trump, killing one other attendee and critically wounding two others. Blood began to pour down Trump’s face while Secret Service agents flocked to the stage to shield him before he made a defiant gesture towards his supporters as h…