Age of 2028 Democratic Presidential Nominee?

Resolution rules

This market will resolve according to the age of the individual who formally wins and accepts the 2028 nomination of the Democratic Party for U.S. president. The individual's age will be calculated on the day on which they accept the nomination. A person will be considered to have advanced from one age to the next immediately upon the beginning of the calendar day of their day of birth. In the event that no individual has won and accepted such nomination by November 7, 2028, this market will resolve to the lowest listed bracket. Any replacement of the nominee before election day will not change the resolution of the market. The resolution source for this market will be a consensus of official Democratic Party sources and official public records; however, a consensus of credible sources may suffice.