Writing in The Telegraph, the Tory peer urged the prime minister not to “ignore” the scale of resentment among his own lawmakers, as revealed in Monday’s vote of confidence in his leadership. Lord Frost predicted that another attempt to oust Mr Johnson could be made after the Conservative Party’s conference in early October, unless course changes. He called for a reversal of tax increases, a reduction in VAT on energy bills and a “10-year Conservative plan” to change Britain. Coming from a Johnson ally, although he has been critical of political decisions since leaving the cabinet in December, the message will stress to Downing Street that the prime minister remains in political danger. “Every prime minister has weaknesses and blind spots,” wrote Lord Frost. “The question is whether they are able to compensate by having the right people, taking good advice and setting a clear policy direction with broad support. “The prime minister probably already has to show at the party conference that he can do that.” Mr Johnson tried to reassert his political power in his party in a speech in Blackpool on Thursday after surviving little of the ousting attempt on Monday. The Prime Minister issued a new promise to reduce taxes, saying that the growing tax burden – the forecast to reach a high of 70 years – was a “deviation” that must be reversed. “You can not spend your way out of inflation and you can not tax your way to growth,” said the prime minister.