NEW YORK – Presidential politics move fast. What we’re watching heading into a new week on the 2020 campaign:Days to general election: 15Days to next scheduled presidential debate: 3___THE NARRATIVEPresident Donald Trump is openly contemplating the prospect of losing, while Democratic challenger Joe Biden is warning his supporters against overconfidence as the 2020 presidential election speeds into its closing days.With more than 22 million votes already cast, Biden’s lead in the national polls appears to be as strong as ever.