New Liberal Democratic Party President Fumio Kishida won't have much time to get comfortable in the Prime Minister's Office after he is formally elected to the country's top post Monday.

Kishida, who is set to be named prime minister during an extraordinary Diet session following a successful LDP leadership campaign, will soon face a general election, which is expected to take place on either Nov. 7 or Nov. 14.

While it appears unlikely the ruling LDP-Komeito coalition will lose its majority in the Lower House, a weak performance at the polls could create interparty pressure for top leadership changes afterward.