In open defiance of state regulations and his own administration’s pandemic health guidelines, US President Donald Trump hosted his first indoor rally since June with a packed, mask-less Nevada crowd.Eager to project a sense of normalcy in imagery, Trump on Sunday soaked up the raucous cheers inside a warehouse. Not since a rally in Tulsa, Oklahoma, that was blamed for a surge of coronavirus infections has he gathered supporters indoors.Trump railed against his Democratic rival, former vice…