TOKYO — Japan’s ruling Liberal Democratic Party may not reach a sole majority in the lower house general election to be held on Oct. 27, a new Nikkei poll shows, potentially setting the stage for political turmoil not seen since 2009, when the LDP lost control to the now-defunct Democratic Party.

The LDP needs 233 of the lower house’s 465 seats to reach a sole majority. As of Oct. 9, the day of the lower house’s dissolution, the LDP alone had 256 seats.