berlin u.s. president barack obama thursday say hop president-elect donald trump could stand russia need would take constructive approach cooperate moscow interest align order us solve many big problems around world interest work russia obama tell joint news conference german chancellor angela merkel hope president-elect come take similarly constructive approach find areas cooperate russia value interest align president-elect also will stand russia deviate value international norms obama say add important sanction impose russia action eastern ukraine remain place moscow comply minsk peace agreement obama ask think merkel run fourth term chancellor say consider outstanding leader would vote merkel german citizen obama say hop trump stand russia need