Ammon News - UK former finance minister Rishi Sunak and foreign secretary Liz Truss will battle it out to become Britain's next prime minister after they won the final lawmaker vote, setting up the last stage of the contest to replace Boris Johnson, multiple UK news agencies reported Wednesday.

Truss overturned Trade Minister, Penny Mordaunt's, narrow lead in the final vote among Tory MPs, securing a place in the run-off by 113 votes to 105.

She will now go head-to-head with Sunak, who topped the final ballot with 137 votes.

The winner will be decided by a vote among Conservative party members.