If Obama tells them to vote for it they will vote for it, end of story.

(WaPo) — On the Senate floor Monday morning, Sen. Tom Harkin, a liberal Democrat from Iowa, said he was “disturbed” to hear that Democratic negotiators had agreed to raise the threshold for the income tax rate increases to $450,000, from $250,000, and to maintain estate taxes at their current level.

“This is one Democrat that doesn’t agree with that — at all,” Harkin said. “I just think that’s grossly unfair.”

He added: “If you make $250,000 a year, you’re not middle class. You’re in the top 2 percent of income earners in America…. If we’re going to have some kind of deal, the deal must be one that favors the middle class — the real middle class. As I see this thing developing, quite frankly, no deal is better than a bad deal, and this is looking like a very bad deal.”

Harkin later told CNN that he and fellow liberal Democrats will meet to discuss strategy this morning and may block the deal from moving forward.