Sen. Bernie Sanders denounced the "arrogance" of the two Democratic senators barring Joe Biden's signature social spending bill passage, claiming that most Americans actually agree with its key tenets. Republicans in the Senate are united in opposition to the Build Back Better bill. Fifty Democrats have to be in favor for it to pass, with Sens. Joe Manchin and Kyrsten Sinema still opposed for many reasons. [tweet_embed] December 19, 2021[/tweet_embed] On Thursday, Sanders told MSNBC host Chris Hayes: "I respect other people's points of view, but I do not respect the arrogance of any member of the senate who says, 'You know what? I'm going to torpedo this entire bill, supported overwhelmingly by the American people...'" "You've got two people saying, 'You know what? Hey, if you don't do it my way - I don't care what the president wants, I don't care what 48 of my colleagues want - it's my way or the highway.' And that, I regard as arrogance." Sanders' remarks came as President Biden admitted that it's doubtful that Democrats will reach their end-of-the year-goal of passing the $1.75 trillion social spending bill. "We will advance this work together over the days and weeks ahead; Leader Schumer and I are determined to see the bill successfully on the floor as early as possible," Biden announced in a statement Thursday. [tweet_embed] December 19, 2021[/tweet_embed] "We will – we must – get Build Back Better passed, even in the face of Republican opposition. At the same time, we must also press forward on voting rights legislation, and make progress on this as quickly as possible." Biden continued that he and fellow party members would persuade Manchin to back the measure. Biden has interacted with Manchin at least three times this week alone. In response to being asked whether differences could be set aside to hold a vote on the bill before Christmas, Manchin announced, "We haven't even gotten anything back from the parliamentarian, so just procedurally, we have nothing to vote on." Manchin (D-W.Va.) and Sinema (D-Ariz.) possess the party's key votes to pass the Build Back Better bill - and without their backing, the legislation fails. [tweet_embed] December 19, 2021[/tweet_embed] Manchin has repeatedly disagreed with fellow Democrats on the legislation's cost, warning a high spending package would be "fiscally irresponsible" due to growing indications of inflation. According to Mediaite, Sinema opposes abolishing the filibuster, which requires 60 votes to start and end debate on most bills.