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This headline seems misleading to me after reading the article. Manchin is objecting to exemptions that can undermine some of the intent of the law, which was not only to promote EVs, but also to grow the American manufacturing base by giving tax credits for domestically manufactured products.
So, it's a worthwhile debate to have, deciding whether or not the US should be bolstering its manufacturing with these tax credits or using them for foreign products, but what mansion is talking about is not as simple as this headline is suggesting, in classic straw-man fashion.
TLDR;

"the EV tax credits were designed to grow domestic manufacturing and reduce our reliance on foreign supply chains for the critical minerals needed to produce EV batteries.″ -Manchin
The Manchin bill directs the Treasury to stop issuing tax credits for vehicles that don’t comply with battery requirements.

And the battery requirement Manchin is talking about is that they be produced domestically. 
As a Midwesterner in a town that was gutted by auto manufacturing moving to other countries due to unfair free trade agreements, I'm not going to dismiss Manchin on this topic just because I disagree with him on most other topics. I'd like to see these American tax credits bringing back jobs to Americans.
Manchin just can't stop shitting on the American people. >

Someone needs to explain to him that electric cars use electricity generated by coal power plants. >

That's not the issue for him. The issue is that a mostly electric vehicle fleet will, in the long run, fuck his state since its a step in the direction of total clean energy.  
West Virginia has, literally, nothing significant going for it except for fossil fuels. >

They are the largest purchasers of butt plugs per capita in the US. So they got that. >

He’s so stupid. Combustion cars don’t run on coal, but electric cars can. Mr coal country needs some educatin’. >

Maybe he wants us to switch to coal-fired steam jalopies. >

We thought he was a coal Barron, turns out he’s just a steampunk.