President Joe Biden appeared to have a hard time making it up the stairs to Air Force One after he tested positive for COVID-19,

On Wednesday, video showed Biden leaving his vehicle and walking to the presidential aircraft.

He appeared to be moving very slowly and methodically up the slower steps, at several points appearing to pause for a few seconds.

Watch the video below:

In a statement, White House press secretary Karine Jean-Pierre said Biden is “experiencing mild symptoms” and will “self-isolate” at his home in Delaware.

She added he will “continue to carry out all of his duties.”