Former Congresswoman Marjorie Taylor Greene has warned her one-time close ally President Donald Trump that putting U.S. boots on the ground in Iran could have dire consequences. 

“If you send in U.S. military troops into Iran, there is going to be a political revolution in America,” said Greene. “We said no more foreign wars and we meant it. The coalition will unite and be unstoppable. I’ll make sure of it.”

She signed off her message Sunday with a plea to “end this war,” referring to the ongoing conflict as “stupid.”

Trump, who has previously declined to rule out deploying ground troops into Iran, addressed the stalled peace talks between the U.S. and Iran over the weekend.

“For Iran, the clock is ticking, and they better get moving, fast, or there won’t be anything left of them. Time is of the essence,” warned Trump, amid the extended, yet increasingly fragile, U.S.-Iran cease-fire.

The President later posted an image of a U.S flag overlaying a map of the Middle East, with multiple areas pointing in on Iran from neighboring countries. 

Meanwhile, this isn’t the first time Greene has criticized Trump for engaging in a conflict with Iran after he campaigned on a promise to avoid dragging the U.S. into foreign wars, instead focusing on home prosperity. 

The former Congresswoman joins other high-profile conservatives—such as Tucker Carlson, Megyn Kelly, and Candace Owens—who were once proudly part of the MAGA coalition, but have been critical of the Iran war, of which there is no clear end in sight.

An official second round of peace negotiations have yet to take place in Islamabad, Pakistan, as Washington and Tehran remain split on key issues such as Iran’s nuclear capabilities and naval navigation in the Strait of Hormuz.

Little progress has been made since.

Proposals fall flat as strikes reported in the Gulf region, risking resumption of hostilities

“We want to make a deal. They are not where we want them to be,” Trump said of Iran in an interview published Sunday. “They will have to get there or they will be hit badly, and they don't want that.”

Trump reportedly spoke with Israeli Prime Minister Benjamin Netanyahu over the weekend about the war and, according to Axios, is set to meet with his own top national security team Tuesday to discuss military options.

Citing Pakistani sources, Reuters reported Monday morning that Pakistan had shared with the U.S. a revised proposal from Iran to ​end the war. 

TIME has been unable to independently verify the report and has reached out to the White House for comment. 

According to Iran’s semi-official Fars news agency, Tehran had previously expressed five demands to be fulfilled in order for negotiations to continue. These included ending the conflict, including in Lebanon, lifting sanctions on Iran, unfreezing Iranian assets, compensation for war damages, and recognizing Iranian sovereignty over the Strait of Hormuz. 

“The major roadblock is still the question of Iran's nuclear program, and in particular, whether they will be allowed to continue enriching uranium,” Jonathan Morten, director of the International Public Policy Programme at University College London, tells TIME. 

Alongside disagreements over Iran’s nuclear ambitions, the Strait of Hormuz is another key issue. 

“We have the question of to what extent, or whether Iran will continue to regulate or control shipping in and out of the Strait of Hormuz,” says Morten. “There are several possible levels of agreement. One is that they find a way to agree about the status of the Strait of Hormuz, but not on the larger nuclear issue. So far, Trump hasn't been willing to do that.”

Reported strikes in the Gulf region are further complicating matters.

The United Arab Emirate’s defense ministry reported three drones entering Emirate airspace on Sunday, two of which were successfully intercepted. 

“The third struck an electrical generator outside the inner perimeter of the Barakah Nuclear Power Plant in the Al Dhafra Region,” the ministry said.

In Saudi Arabia, three drones “coming from Iraqi airspace” were intercepted and struck down, the country's defense ministry stated on Sunday.

Saudi Arabia and the UAE, alongside other Gulf allies of the U.S., were targeted by Iranian drones in the initial weeks of the war. 

Trump's approval rating plummets in U.S. amid the fallout of the Iran war

Trump’s approval rating has dipped to 37%, according to a poll published by the New York Times on Monday.

The Times/Siena poll also found that 64% of Americans think Trump’s move to go to war with Iran was the wrong decision. 

Many Americans are feeling the economic impact of the war in the Middle East.

Due to the effective blockage in the Strait of Hormuz, energy prices have risen significantly.

The national price average for one gallon of gasoline now sits at $4.51 according to the American Automobile Association, up from $2.98 per gallon just before the conflict began.

Grocery prices have also seen a significant rise in the U.S., partly due to the Iran war, as well as the Trump Administration’s hardline tariff policies. 

When asked last week what extent he factored in Americans’ financial situation when considering a deal, Trump said: “I don’t think about Americans’ financial situation. I don’t think about anybody. I think about one thing: We cannot let Iran have a nuclear weapon. That’s all.”

The economic impact of the war could prove damaging for the Republican Party at the midterms in November, experts say.

Morten predicts that Democrats will focus heavily on this during their own campaigning efforts.

“Their calculation is that [Trump] is more vulnerable on issues around inflation, the cost of living, high gas prices, and the way those things seem to be linked directly to the conflict in Iran,” he says.

“Republicans who are standing for election this year, particularly in the House, are very, very concerned about this issue of Iran and its impact.”