Trump vs. Biden in Iowa: Septuagenarian rivals try to demonstrate vigor in head-to-head stops

3:00am PDT - June 11th, 2019    shannon elizabeth - USA Today

As the two prepare to make their case to Iowans, there’s renewed attention on whether a septuagenarian candidate can persuade skeptical 2020 voters that he or she can demonstrate the vigor and vision needed to lead the nation.