President Joe Biden announced Sunday in a tweet that he is dropping out of the 2024 presidential race.

Since his June debate performance against former President Donald Trump where he stumbled through answers and looked confused, the 81-year-old faced calls from allies within his party to drop out. Touting his achievements throughout his presidency, Biden told Americans Sunday that he believed it was best for his party and country to drop out of the race and focus on the rest of his term.

“It has been the greatest honor of my life to serve as your President. And while it has been my intention to seek reelection, I believe it is in the best interest of my party and the country for me to stand down and to focus solely on fulfilling my duties as president for the remainder of my term,” Biden wrote in a twitter statement.

The president wrote that he will later address the nation about his decision. He is currently in Delaware after being diagnosed with COVID-19 on Wednesday.

Biden did not endorse his Vice President Kamala Harris for president in the 2024 race, but he did thank her for serving alongside him.

“For now, let me express my deepest gratitude to all those who have worked so hard to see me reelected. I want to thank Vice President Kamala Harris for being an extraordinary partner in all this work. And let me express my heartfelt appreciation to the American people for the faith and trust you have placed in me,” Biden wrote.

Throughout his presidency, and most prominently following his debate performance, Biden faced concerns about his fitness for office. In attempt to hide the affects of his age, aides escorted the president to and from Marine One from the South Lawn, he wore sneakers rather than dress shoes and took shorter stairs up Air Force One. Most recently, it was revealed that a neurologist and Parkinson’s disease specialist visited the White House several times in the recent months.

This story is breaking and will be updated with further developments.