Setbacks for Biden at home and abroad as he marks challenging year in office

President alarmed Ukraine with minor incursion' remark on Wednesday, as confidence in Biden's leadership eroded by series of problems

Joe Biden on Thursday marked a year since his inauguration as president obliged to confront the same urgent crises he inherited when he took the oath of office: an unrelenting pandemic, economic uncertainty and a democracy threatened by partisan division and lies.

But now those challenges have been compounded by a string of setbacks, both at home and abroad, that have eroded confidence in his leadership.