Kopacz swiftly conceded defeat after exit polls from TVP showed PiS on its way to a majority , while Kaczyński declared victory and hailed his party 's historic majority . Kaczyński also paid tribute to his late brother , President Lech Kaczyński , who died in the 2010 plane crash
2010 plane crash
2010 Polish Air Force Tu-154 crash
2015 Polish parliamentary election