European Union leaders confirmed Donald Tusk for a second term as council president today, overcoming weeks of strong opposition from his native Poland, which immediately retorted by seeking to hold up proceedings at their joint summit.'<br/><br/>Poland refused to approve some summit texts, raising unease at a time when the EU is looking for unity as the crisis-prone bloc is faced with the painful departure of Britain.'<br/><br/>Tusk said in a tweet that he would do his best to make EU better.'<br/><br/>Poland had argued that the decision should be delayed because of its displeasure with Tusk, a bitter political rival. But Warsaw's government was totally isolated at the vote, a meeting participant said. '<br/><br/>Poland's nationalist government had proposed little-known Polish EU lawmaker Jacek Saryusz-Wolski to replace Tusk, whose current term ends May 31. <br/>''''''<br/><br/><br/>