Sen. Dianne Feinstein (D-CA) appears to have made a startling revelation about why she released the Fusion GPS transcripts on Tuesday — she was “pressured” to do so.

The revelation came from CNN Congressional Correspondent Manu Raju, who tweeted: "FEINSTEIN says she’s sorry to Grassley for not giving him a headsup about the release of the Fusion GPS transcript. 'I meant to tell him, and I didn’t have a chance to tell him, and that concerns me,' she told us. 'I just got pressured, and I didn’t do it.'"

Sean Davis, co-founder of The Federalist, was the first to notice the overlooked detail and was quick to point out its potential seriousness. Davis tweeted: "Wait. She was 'pressured?' By whom? That seems like a pretty huge detail. Was it a donor? A party boss? Federal officials? Who 'pressured' her?"

UPDATE: Feinstein later claimed, according to Raju, that she was not pressured to release the transcripts and her office claimed that she "misspoke."