Trying to save the president……

Senate Democrats on Tuesday blocked a resolution disapproving the Iran nuclear deal for a second time, standing firm behind the signature foreign policy initiative of President Obama’s second term.

The Senate voted 56-42 for the Iran resolution, short of the 60 votes needed to move forward.

Sens. Rand Paul (R-Ky.) and Lindsey Graham (R-S.C.), both candidates for president, didn’t vote. Meanwhile, in a repeat of last week, Democratic Sens. Ben Cardin (Md.), Joe Manchin (W.Va.), Robert Menendez (N.J.) and Charles Schumer (N.Y.) bucked Obama to oppose the Iran agreement.

Republicans have until Thursday to pass legislation rejecting the nuclear deal, and while they have pledged to keep the focus on Iran up through the deadline, their next steps are unclear.

Sen. John Cornyn (R-Texas), the Senate’s No. 2 Republican, said that additional votes on Iran this week are “still being discussed.”

“Whether there are other votes that we’ll take, that hasn’t been decided yet to my knowledge,” he told reporters.

Meanwhile, Majority Leader Mitch McConnell (R-Ky.) threatened to force a vote on an amendment that would require Iran to support Israel and release Americans currently held in the country before President Obama could lift sanctions.

Regardless of additional votes, the nuclear deal is all but guaranteed to survive Congress and go into effect next month. Under the bargain, economic sanctions will be lifted on Iran in return for internationally enforced limits on its nuclear program.

McConnell (R-Ky.) slammed Democrats as willing to “win ugly” by saving the president from having to veto a resolution rejecting the deal.