Louisiana Gov. Bobby Jindal is challenging all of the potential presidential candidates to sign onto an open letter that several Republican U.S. senators have directed at Iran, drawing the ireof President Barack Obama’s administration.

“Every single person thinking about running for president, on both sides, should sign on to this letter to make clear to Iran that they are negotiating with a lame duck president,” Jindal said in a statement released through his America Next think tank Tuesday. “Make no mistake – any Iran deal that President Obama makes is not binding on a future president.”

The letter, signed by 47 Senate Republicans so far, warns Iran that any nuclear deal it strikes with the Obama administration isn’t guaranteed after he leaves office in 2017 if Congress is not brought on board.

Jindal is considering a run for president but has been lagging in the crowded GOP field’s lower tier and polling in single digits. He released his remarks as state lawmakers met at the Louisiana Capitol to discuss possible solutions to the state’s impending budget crisis.

Louisiana faces a $1.6 billion funding shortfall in the coming year, which could translate to sweeping cuts for higher education and health care, among other programs.

Jindal’s remarks focus solely on criticism of Obama and Vice President Joe Biden, while praising Arkansas Sen. Tom Cotton, a veteran who drafted the letter.

“The president’s dithering on Iran is the reason we are where we are today. At present, we have an occupant in the White House that thinks we are at war with medieval Christians and Senate Republicans,” Jindal said in his statement. “It’s time for the president to focus on the real enemy – Radical Islam and a nuclear Iran.”

Read the full text of Jindal’s comments:

“America Next supports the letter sent by Senator Tom Cotton and his colleagues to Iran warning them that Congress will have to approve any nuclear deal.

Vice President Biden owes Senator Cotton an apology. He wore the boots in Iraq. He’s earned our attention, not your insults. I’m glad some Senators are showing leadership in the absence of leadership from the White House.

Further, every single person thinking about running for President, on both sides, should sign on to this letter to make clear to Iran that they are negotiating with a lame duck President. Make no mistake – any Iran deal that President Obama makes is not binding on a future president.

If the deal President Obama is trying to get truly commits the U.S. to actions through an international agreement like a treaty does, which is equal to the Constitution in authority, then it is a treaty. And if President Obama wants that kind of deal, then he needs to accept that it is a treaty requiring a U.S. Senate vote. But he doesn’t want to submit it to a vote. He can’t have it both ways.

The President’s dithering on Iran is the reason we are where we are today. At present, we have an occupant in the White House that thinks we are at war with medieval Christians and Senate Republicans. It’s time for the President to focus on the real enemy – Radical Islam and a nuclear Iran.”