Trump’s former immigration policy designer is being hammered online for having a cow over the supposed crimes he believes DHS Secretary Alejandro Mayorkas and “everyone” in the Biden administration committed. A clip of Stephen Miller’s impassioned take on the Southern Border crisis was posted online featuring a few seconds clipped from appearance on Sean Spicer’s show (Spicer served the Trump administration as his first White House Press Secretary). The video came after an appeals court rejected the ex-president’s bid for immunity from prosecution. “What if I find a prosecutor who says, ‘Open …