Polish opposition leader Donald Tusk seeks to boost his election chances with a rally in Warsaw

Polish opposition leader Donald Tusk is facing an uphill battle to win new hearts in his efforts to unseat the nationalist conservative government in Poland's upcoming parliamentary election. The ex-prime minister and former European Union leader returned to Polish politics several years ago, seeking to breathe new life into his languishing party and win back power — and reverse what many view as a degradation of fundamental rights and ties with European partners under the governing populist Law and Justice party. Shaping the campaign is a long and bitter personal rivalry between Tusk and Law and Justice chief Jaroslaw Kaczynski, who is the country’s 74-year-old de facto leader.