 but the meeting did not comfort those who have concerns many of them are not talking fox's chad pergram on capitol hill so far vermont senator peter welch is the lone senate democrat who wants the president to step aside president biden said to hold a news conference later this evening as he hosts nato leaders in what's considered an important test in the future of his campaign a short time ago he talked about the alliance's commitment to ukraine we are united behind ukraine as a fight to defend its freedom and its future