The growing scandal, only two weeks before the national election, has dealt a fresh blow to Sunak’s Conservative Party, which is widely expected to lose to the opposition Labour Party after 14 years in power.
Sunak said last week he was “incredibly angry” to learn of the allegations and that anyone found to have broken the law should be expelled from his party.
Sunak announced on May 22 that parliamentary elections would be held on July 4. The date had been a closely guarded secret and many were taken by surprise because a vote had been expected in the fall.
Saunders, a candidate standing in Bristol, southwest England, has said she will co-operate fully with the investigation.
Williams was Sunak’s parliamentary private secretary as well as a member of Parliament running for re-election on July 4. He has acknowledged he was being investigated by the Gambling Commission for placing a £100 ($128) bet on a July election before the date had been announced.
Senior Conservative minister Michael Gove condemned the alleged betting and likened it to “Partygate”, the ethics scandal that contributed to former Prime Minister Boris Johnson’s ouster in 2022.
That controversy caused public trust in the Conservatives to plummet after revelations that politicians and officials held lockdown-flouting parties and gatherings in government buildings during the Covid-19 pandemic in 2020-21.
“It looks like one rule for them and one rule for us,” Gove told the Sunday Times. “That’s the most potentially damaging thing.”
Daisy Cooper, the deputy leader of the Liberal Democrats, said “people are sick and tired of this sleaze” and that Sunak must intervene and order an official inquiry.
The Conservative Party said it could not comment because investigations were ongoing.