US President Joe Biden has turned 82 years old, marking a historic milestone as no sitting head of state has ever reached this age, Reuters reports. The occasion was celebrated with well-wishes from family, friends, and colleagues, including First Lady Jill Biden and former President Barack Obama, who congratulated him on social media. Vice President Kamala Harris also shared her greetings, posting on the X social network, " Happy birthday to my dear friend and our amazing president , Joe Biden.