Article continues below advertisementPresident Donald Trump delivered an unexpectedly warm tribute to Rupert Murdoch for his 95th birthday, even as he continues to pursue a $10 billion lawsuit against the media tycoon and one of his newspapers, but experts say the move may have a strategic purpose.The unusual moment unfolded during Murdoch's star-studded birthday celebration in New York, where Trump appeared via video message praising the News Corp founder as "legendary" and "one of a kind.