Humza Yousaf has been mocked by opposition parties after a new poll found half of respondents say he is doing badly.
A YouGov survey of 1,100 Scots between June 26 and 29 shows 50 percent viewed the Scottish First Minister as having done a poor job since taking office.
The SNP leader, who took over from Nicola Sturgeon following her shock resignation in February, marked 100 days in power last Friday.
Just 23 percent endorsed his time in office which has seen the SNP in crisis over a police investigation into its finances.
Scottish Tory chairman Craig Hoy said the “only surprise” from the poll was that “just half those responding think Humza Yousaf’s doing a terrible job”.
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He added: “The First Minister has watched several of his flagship policies fall to pieces and his party descend into open warfare, and there’s still a huge shadow over their conduct and murky finances.
“Meanwhile, while Humza pushes his independence obsession, the health service is at breaking point, the ferries fiasco continues, public services have been slashed and a further £1billion black hole in the budget has been announced.
“Anyone who doesn’t find that disastrous must have been on the moon for the past 100 days.”
And Scottish Labour deputy leader Jackie Baillie said the First Minister had “somehow managed to fall short of the low expectations we had of him”.
She said: “He has been missing in action while Scots struggled with the worst cost of living crisis in decades and the NHS crisis he let spiral as health secretary.
“He failed as Transport Minister, Justice Secretary, Health Secretary – and now he is failing as First Minister too, leaving his party and our country in chaos.”
Those polled were also given six topics and asked to evaluate Mr Yousaf’s performance, including on the cost of living, where just 15 percent said he had done well, compared to 60 percent saying he had not.
On the ongoing investigation into the SNP’s finances, 22 percent of respondents believed Mr Yousaf was doing a good job, compared to 48 percent who believed otherwise.
On Scottish independence, 18 percent believed he had handled the issue well, while 50 percent did not.
Some 17 percent approved of his stewardship of the economy, while 55 percent did not.
Elsewhere, 18 percent believed he had done a good job on healthcare, compared to 56 percent who did not and 20 percent believed his administration were handling climate change well, compared to 44 percent who believed the opposite.
A spokesman for the First Minister insisted recent polling has shown the SNP remains the “most popular party in Scotland, which reflects the record of delivery of the new Scottish Government”.
While the SNP remain in the lead, surveys in recent months have shown the gap to be reducing.
The spokesman added: “In his first hundred days, Humza Yousaf defined the core missions of his administration – equality, opportunity, community – and introduced substantial measures to help achieve these aims.
“His first action as First Minister was to triple the funding to help households most vulnerable to fuel poverty, and more than 300,000 families are benefiting from our game-changing Scottish Child Payment – which is unique in the UK.
“We have launched a new 10-year cancer strategy to improve survival rates and provide excellent, accessible care for all, and are making progress in cutting NHS waiting lists.
“Just last week, the First Minister announced the biggest pay uplift since devolution for senior medical and dental staff, and Scotland continues to be the only nation in the UK that has avoided NHS strikes over the last year.
“Work to reset relationships with business and local government is well underway, as well as rebuilding and reshaping how education is delivered.
“Putting the needs of people is at the heart of everything we do as a Government.”
