President Joe Biden said Friday that talks on his $3.5 trillion spending proposal were at a standstill as Congressional Democrats struggle to bridge differences between the party’s factions. Biden made the remarks at a Sept. 24 White House briefing, during which he addressed a range of issues, including the still-evolving $3.5 trillion package of social safety net and climate programs. “We’re getting down to the hard spot here,” Biden said. “We’re at this stalemate at the moment.” Biden added that the process is “going to be up and down,” adding that, “I’m confident that, at the end of the day, we’re going to be able to get that done.” His remarks shed light on competing priorities and differences in viewpoint between the Democrat party’s progressive and moderate wings. Republicans are universally opposed to the $3.5 trillion measure, while Democrat Sens. Joe Manchin (D-W.Va.) and Kyrsten Sinema (D-Ariz.) have balked at the …