The British Conservative Party chairman rejected calls for Prime Minister Boris Johnson to resign but said he must address the culture within his government that resulted in multiple staff gatherings at his residence during coronavirus lockdowns.
Johnson has apologised for attending a gathering in the garden of his Downing Street residence in May 2020 where staff had been invited to bring their own alcohol at a time when strict rules forbade the public from almost all socialising.
Amid a public backlash at the perception that the government did not follow its own rules during the pandemic, an internal investigation is looking at that party and several others - including two separate parties on the eve of Prince Philip's funeral.
"We need to find out the facts and then the Prime Minister needs to respond effectively and to address the culture in Downing Street," Conservative Party Chairman Oliver Dowden told Sky News on Sunday.
The scandal has generated calls for Johnson to resign - including from within his own party - and seen the Conservatives fall far behind the opposition Labour Party in opinion polls.
Dowden insisted that Johnson should remain in his post, defending his handling of the pandemic.
Facing the most serious threat to his leadership since he came to power in 2019, the Sunday Times reported Johnson would try to draw a line under the issue with a mass clear out of staff and a slew of populist policies.
The Sunday Express reported that Johnson would remove all existing coronavirus restrictions at an upcoming review, including mandatory face masks and an instruction to work from home where possible. The report cited a government source.
Asked about that, Dowden said: "I'm very hopeful and optimistic but clearly, we will await the data at the point of the decision before making that final decision."
New cases of Covid-19 have begun falling after a sharp spike caused by the highly-transmissible but milder Omicron variant. Britain reported nearly 82,000 new cases on Saturday, less than half the peak seen in early January.