Can Boris Johnson become Prime Minister again?
3:29
(CNN) --
Former UK Prime Minister Boris Johnson will sit out the race to become the next leader of the Conservative Party and thus the next prime minister, the British News Agency reported on Sunday. AP Mean.
The former prime minister claimed to have secured the support of 100 MPs, the minimum number required to clear the threshold to appear on the Conservative Party membership ballot, but declined to run, saying "this just wouldn't be the right thing to do". .
He added that "you cannot govern effectively unless you have a united party in Parliament," according to Pan Media.
Liz Truss's possible successors as Prime Minister of the United Kingdom
Johnson's announcement comes after Britain's former finance minister, Rishi Sunak, officially entered the race to lead the Conservative Party, his second bid for the job this year.
Sunak has already collected the required 100 nominations from party members in order to run.
Sunak tried to become leader seven weeks ago after the resignation of Boris Johnson, but lost to Liz Truss, who resigned on Thursday.
Boris Johnson