Joe Manchin worries Biden’s social spending agenda costs too much, so

• Manchin is among the last obstacles to Build Back Better’s approval, but the CBO just blew up his main talking point.

• He says he wants the package to be fully paid, and the CBO says it would add $160 billion to the deficit.

• Along with several Republicans, Manchin just voted for an infrastructure law that will be even bigger, adding $259 billion to the deficit.

A centrist senator says the government shouldn’t spend more than $1 trillion that would add to the deficit. Another centrist senator votes for a law that’s larger than $1 trillion that adds hundreds of billions to the deficit.

There’s just one problem: Both of these are Sen. Joe Manchin of West Virginia. He has one stance on Joe Biden’s Build Back Better agenda and another on the bipartisan infrastructure bill that Biden signed into law this week. Both can’t be true.

Even Mitch McConnell voted for the infrastructure law, a return to his voting patterns during the Trump presidency, when he repeatedly voted for laws that increased the national deficit.

Manchin has already succeeded in cutting a lot from Build Back Better, whittling down the original $3.5 trillion price tag to roughly $2 trillion. Even with this reduction, he’s adamant the plan must be fully paid for by a combination of tax hikes.

The Build Back Better Act passed by the House on Friday is estimated to add $367 billion to the government deficit over the next decade, according to analysis by the Congressional Budget Office. The estimate doesn’t include revenue from improved IRS enforcement, but even after factoring that in, the package is set to add $160 billion to the deficit. That looks paltry compared to the infrastructure bill that Manchin — and Senate Minority Leader Mitch McConnell — both just voted for.

The senator has hinted he won’t back a plan that adds to the deficit, but he did just that in August. Manchin voted to pass the $1 trillion infrastructure plan in early August despite it not being fully paid for. He was among the few senators to craft the bipartisan package. Not only does it boost the deficit, but the CBO estimates the infrastructure plan will cost the US about $256 billion.

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In other words, Manchin has already backed a bill that adds nearly $100 billion more to the deficit than the one he’s worried is too expensive.

Manchin’s office did not reply to a request for comment.

Caring about the price tag in all the wrong ways

Focus on the Build Back Better plan’s cost strikes at a growing divide in the Democratic party. Progressives see the moment as key to creating a more equitable economy. Centrists like Manchin are expressing concerns similar to those coming out of the Republican Party.

For one, progressives initially pushed for a much larger spending bill and aimed to cover the costs with more aggressive taxation of billionaires and corporations. Members frequently pointed to the package’s popularity, and President Joe Biden repeatedly…