Wall Street Journal: “The 81-year-old Biden is the oldest person to hold the presidency. His age and cognitive fitness have become major issues in his campaign for a second term, both in the minds of voters and in attacks on him by Republicans. The White House and top aides said he remains a sharp and vigorous leader.” “Some who have worked with him, however, including Democrats and some who have known him back to his time as vice president, described a president who appears slower now, someone who has both good moments and bad ones.” “For much of his career, Biden enjoyed a reputation on Capitol Hill for being a master negotiator of legislative deals, known for his detailed knowledge of issues and insights into the other side’s motivations and needs—and for hitting his stride when the pressure was on.