Reform UK says it hopes the chancellor's spending review delivers "the opposite of what she's been doing" so far.
Zia Yusuf warned Labour's economic policies are an example of "what happens when people with no meaningful experience in the real world - not really understanding how the real world works - occupy the highest offices in the land".
The former chairman was asked what he would like to see in Rachel Reeves' review this lunchtime.
In response, he told Sky News that Reeves' decision to hike employer national insurance contributions (NICs) has a "clear, direct" link to rising unemployment and a falling number of vacancies.
He also called for net-zero to be scrapped because "this is a regressive tax on working people".
It should be noted that this is not the chancellor's annual budget, but is a multi-year spending review, which sets out funding for government departments.
Finally, the Reform UK politician warned that Reeves' desire for economic growth cannot be achieved while the UK has some of "the most expensive energy costs in the world".
He warned: "If you have high energy costs, there is not a single example in history of a high growth, developed economy growing fast with energy costs like ours."
Instead, Yusuf said the chancellor's review will deliver "the opposite".
He said: "We're going to get more public spending. So, what am I expecting? Unfortunately, more of the same."