Joe Biden leads Donald Trump by six points among registered voters – 50 to 44 per cent – up from a one-point lead in December, according to a new poll. The president is getting stronger among women voters in the Quinnipiac University poll released on Wednesday, leading his predecessor by 58 to 36 per cent. In December, Mr Biden’s lead was significantly smaller among women, 53 to 41 per cent. “The gender demographic tells a story to keep an eye on. Propelled by female voters in just the past few weeks, the head-to-head tie with Trump morphs into a...