Here are the main contenders to succeed British Prime Minister Liz Truss after she announced her resignation on Thursday:

Truss easily beat the former Chancellor of the Exchequer in the Tory leadership contest this summer, winning over party members with a promise to cut taxes and regulations without cutting government spending. Rishi Sunak

Sunak, 42, had warned her plans to fund the proposals with additional borrowing were reckless and could exacerbate decades of inflation and market confidence in the UK.

Now that he was right, Sunak was put in as the first favorite by the bookies after Truss’ dramatic announcement.

He garnered the support of most Tory lawmakers on consecutive ballots before party members installed Truss.

A new Tuesday YouGov poll found he has the best ratings of touted alternatives to truss — albeit still with a net health rating of -18.

But he’s also now seen as a divisive figure.

Many party members, who normally have the final say over who leads the party, do not want to forgive him for his role in toppling ex-Prime Minister Boris Johnson.

The former Prime Minister left office early last month after a revolt in his cabinet and among Tory MPs sparked by the resignation of Sunak and others from his faltering government after months of controversy.

Encouraged by several strong hints from Johnson himself, speculation has since swirled that he would attempt an eventual comeback – although few thought it could be feasible so soon.

The Times reported after Truss’s death that he planned to compete in the race.

The ever-exuberant Brexit poster boy remains popular with a section of Conservative MPs and the party. But his brand among the broader electorate was severely damaged by his scandal-ridden three-year tenure.

A recent YouGov poll found the 58-year-old to be far more popular than Truss. Nevertheless, around two-thirds of those surveyed have a negative opinion of him.

Johnson has kept a low profile since stepping down and gave a paid speech in the United States last week, but has not offered any guidance on his views on the current crises in Britain.

He was thought to favor Truss in the summer leadership contest – although his former top aide and arch-critic Dominic Cummings argued that this was because he expected her tenure to be disastrous and short-lived, paving the way for his return paved.

Wallace has impressed as defense secretary, with Britain playing a central role in the global response to Russia’s invasion of Ukraine.

Popular with members, it came as a surprise when the former army captain decided not to compete in the summer to replace Boris Johnson, saying he didn’t want it enough.

But when asked at the recent Conservative Party conference if he would consider running for office, the 52-year-old said: “I’m not ruling it out.”

In the latest ConservativeHome poll of Tory activists, Wallace scored a net approval rating of 85.8, well ahead of any potential rival.

As a soldier, Wallace led a patrol that apprehended an IRA unit attempting to conduct a bombing raid. He was also part of the team that brought home Princess Diana’s body after her car accident in Paris.

The current cabinet member, 49, was an early grassroots favorite to succeed Johnson and came within eight MPs to beat Truss to reach the final runoff against Sunak.

The former defense and trade secretary was a strong Brexit supporter and a key figure in the 2016 Leave campaign.

But she was criticized in the last race for leadership, with some MPs accusing her of being ineffective in previous government roles.

Mordaunt’s profile rose this week after she was sent in place of Truss to answer a pressing question from the Labor opposition in Parliament on the recent economic turmoil on Monday.

Despite being forced to declare that the Prime Minister was “not under a desk” – in response to allegations that Truss was hiding – Mordaunt was coping well with a feverish House of Commons.

Among other potential candidates, new Treasury Secretary Jeremy Hunt and former Cabinet heavyweight Michael Gove are said to have ruled out.