Ironically, it is liberals thwarting Biden's agenda

 Liz Peek:

President Joe Biden desperately needs a win. He has spent hours trying to jawbone Sens. Joe Manchin, D-W.Va., and Kyrsten Sinema, D-Ariz., into supporting his $3.5 trillion "social infrastructure" bill. Why hasn’t he hauled progressive lawmakers into the Oval Office as well?

Why not sit down with Rep. Pramila Jayapal, D-Wash., the head of the uber-liberal caucus that has stymied progress on his bipartisan infrastructure bill? Why no late-night calls to Bernie Sanders, the Vermont socialist who is clearly the shadow president and who has resisted calls to trim Biden’s monster spending package?

We know why: there’s no point. The progressive wing of his party is immune to persuasion; they are ideologues who, through a bizarre twist of fate, suddenly hold the reins of power in our nation’s capital.
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Never has "My way or the highway" been so apt for the uber-liberals in Biden’s party.

Biden is reportedly set to "barnstorm" the country, ready to sell the public on his Build Back Better program, which is likely to cost over $5 trillion and which Democrats cannot figure out how to fund.

It won’t work, for four reasons. One is that Joe Biden’s approval ratings are sinking like a lead plumb; he does not have the power (or the energy) of a popular president. Second, polling shows voters no longer trust Joe Biden. That matters.

Third, the folks he must convince, the so-called "moderates," come from districts already skeptical about Biden’s massive spending ambitions. Voters think, rightly, that the $5 trillion already spent on COVID relief, to paraphrase Manchin, is enough.
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The F*** Joe Biden chants are so pervasive across the country that a public appearance by Biden would likely result in the chants drowning out his message as it is.  Right now the greed of liberals is overwhelming the Democrats ability to govern.

See, also:

Christie: Biden Folded on Infrastructure — He ‘Couldn’t Stand Up to the Taliban’ or AOC