Estonian Prime Minister Kaja Kallas is tipped to become the European Union's next foreign policy boss, but her tough stance on Russia may raise doubts as to whether she can represent views from across the bloc. EU leaders' informal talks on Monday, their first since the European Parliament election, focus on the appointments for the bloc's top jobs, with European Commission president Ursula von der Leyen expected to secure a second term and EU diplomats saying Kallas is in line for the foreign affairs role. Kallas, who turns 47 on Tuesday, has made her name as an eloquent critic of...