Democratic Party For the People leader Tamaki says he is prepared to serve as a prime minister. Opposition parties hold a majority so if they unite, there is a possibility of a government change

TL;DR Following Komeito decision to withdraw from the coalition government with the LDP, political parties are stepping up their bargaining ahead of the extraordinary Diet session's prime ministerial election. If the opposition parties, which hold a majority in the House of Representatives, unite, it could lead to a change of government.

Nippon Ishin leader Hirofumi Yoshimura said on a Yomiuri TV program, “If the CDP and DPP unite behind Tamaki, we’re willing to listen.”