THE HILL: Senate Dems waver on Iran bill.

The White House is trying to bottle up bipartisan legislation that would give Congress 60 days to review a final Iran nuclear deal.

The pushback may be having an effect — Sen. Chris Coons, a Democrat from Delaware, is now undecided about the legislation after Republicans had touted him as a supporter.

Coons is worried Republicans might use the bill as a political weapon, something the White House has warned about.

“He’s reviewing and making a decision on how he’ll vote next week. He is focused on creating a responsible structure for congressional oversight. He is concerned about the bill becoming a partisan vehicle,” said Sean Coit, Coons’s spokesman.

Sen. Mark Warner of Virginia, another Democrat floated as a likely vote to override a veto of the Corker-Menendez bill, softened his stance on Tuesday. A spokesman said it’s “TBD” if Warner will vote for the bill or support a veto override.

“Let’s first see what happens during [the Senate Foreign Relations Committee’s] markup next week,” the aide said.

Claiming Coons and Warner as likely allies, the supporters of the Iran legislation believe they have 66 votes, one short of the threshold needed to override a veto from President Obama.

With the bill close to a tipping point, the White House is leaning on Democrats to withhold support.

Well, I’m sure the Menendez indictment sent a signal.