Finland's president has 'no concerns' about Biden's capacity to lead

Finnish President Alexander Stubb said on Thursday that he has "no concerns" about US President Joe Biden's capacity to lead, amid growing anxiety among supporters of his Democratic Party that the 81-year-old is no longer mentally fit enough.

"I have absolutely no concerns about the capacity of the current president of the United States to lead his country and to lead our fight for Ukraine and to lead NATO," Stubb told reporters at a NATO summit in Washington, which began on Tuesday.

"I've had the opportunity to speak to President Biden on many occasions during the past 48 hours," Stubb said. "We human beings, when we're treated in the public eye, we're never as good as we sometimes look, and we're never as bad."

At a speech opening the summit on Tuesday, Biden was able to read a speech from a teleprompter without significant slip-ups, though he occasionally slurred his words.

Concerns about his mental capacity have been brewing for some time, but escalated after an election debate last month with his opponent Donald Trump, in which Biden appeared to lose his train of thought and ramble incoherently.