The new 18-member executive of the powerful Conservative Party of 1922 will be elected on July 13 – sparking a battle between supporters and opponents of the prime minister. It will decide whether to change the rules that currently prevent a new vote of no confidence for 12 months, which No. 10 hopes will prevent another challenge by next year. The idea will be charged if an investigation by the Commons privilege committee finds that the prime minister lied to lawmakers about the Partygate scandal, the biggest threat to his position. Mr Johnson, who has angered Graham Brady, the current presidency, by trying to oust an ally last year, is expected to step back in the run-up to the election. One member of the commission suggested that the “candidate box” could be run by Tory factions seeking to oust the prime minister and those seeking to oust him. It has been suggested that Sir Graham is unlikely to be challenged, but his deputies William Wragg and Nusrat Ghani – both of whom clashed with Mr Johnson – could face a contest. But No. 10 is believed to have given up on the possibility that the new executive branch will be more hostile than the previous one, given the 148 Tory lawmakers who voted in favor of ousting the prime minister this month. Only followers can serve on the 1922 executive committee – and ministers and whips are not allowed to vote in elections. In addition, anyone considered a Downing Street candidate is unlikely to succeed, given the failed bid to nominate Heather Wheeler as president last year. A senior Tory spokesman told the Independent: “I expect there will be some provocations against people who are not considered sympathetic to the prime minister, such as William and Nusrat.” The current 1922 Commission official has not yet agreed on July 13 as the election date, but he will certainly confirm the recommendation of its officers, who met this week. There have been proposals for a delay until the autumn, but Commission leaders are now bidding next month. Two weeks ago, Sir Graham said the current executive had not yet discussed changing the rules to allow a second impeachment vote within a 12-month period. He said: “Of course, it is technically possible to change the laws in the future. “But I think it’s important to say that the rule that is valid, and is likely to remain in force, is that there is a grace period of one year after the vote of confidence.”