Campaigning for vacant House of Councillors seats started Thursday in Nagano and Hiroshima prefectures, with the outcomes likely to impact Prime Minister Yoshihide Suga's leadership status and the timing of a general election that must be held by fall.A by-election for the upper house constituency in Nagano Prefecture and a do-over election for the constituency in Hiroshima Prefecture -- both scheduled for April 25 -- will be the first national polls since Suga took office in September last year.The two polls will effectively be contested between candidates from the ruling coalition of Suga…READ FULL ARTICLE