Sen. Joe Manchin gets all the attention. But Sen. Kyrsten Sinema could be an even bigger obstacle for Democrats’ spending plans. Today on “Post Reports,” we ask what she wants and how she got here.

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Sen. Kyrsten Sinema (D) has been throwing a wrench in the plans of her own party. The Arizona lawmaker has stalled her votes on major legislative plans including raising the minimum wage and increasing drug prices. But her agenda isn’t explicitly clear, and she’s doing deals behind closed doors, angering her colleagues and her constituents.

Congressional reporter Mike DeBonis reports on Sinema’s political trajectory and what we can glean from it about what her motivations are.

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Correction: In this episode, we misstated the senator who Sen. Kyrsten Sinema replaced in Arizona. She took over Jeff Flake's senate seat in Arizona, not John McCain's. The audio has been updated to reflect the correction.