The Liberal Democratic Party's defeat in two by-elections on Sunday is likely to prompt the administration of Prime Minister Shinzo Abe to use upcoming diplomatic events to deflect domestic attention from recent political setbacks, as he looks ahead to a key Upper House election in the summer, experts said Monday.

Sunday marked the first time the ruling LDP has been defeated in a by-election for national representatives since Abe returned to power in 2012, with the exception of one Kyoto race in 2016 where the ruling party lost by default.

The weekend's losses added to a recent string of political headaches for Abe, including the gaffe-triggered resignations of two high-ranking officials including former Olympics minister Yoshitaka Sakurada, further strengthening the view that Abe faces an uphill battle as he heads toward the July poll.