Sinema has created stacks of spreadsheets tracking the costs and potential tax increases linked to each provision in the large spending bill, according to people familiar with the matter, which she uses in talks with administration officials to explain her concerns.
The precise details of Biden's discussions with Manchin and Sinema have been closely held as all sides work to preserve privacy in the hopes of cultivating trust among the participants. But people familiar with Biden's approach say he has consistently drawn upon his long experience as a senator in how he speaks and interacts with lawmakers, mindful of the particular amount of space and latitude each requires.
A separate White House official bristled at the idea Biden could "just snap his fingers and say, 'I'm President, get in line.'" "Not sure who thinks trying to jam Manchin and Sinema is a great plan, but it certainly isn't viewed as an effective approach here," the official said.