Former Chairman of the Joint Chiefs of Staff Gen. Mark Milley addressed President Biden's age in a recent 60 Minutes interview. The president's age, along with that of former President Donald Trump, have become points of concern for many ahead of the 2024 election. Mr. Biden is now 80 and Trump, the current frontrunner for the Republican presidential nomination, is 77. Political opponents and even some allies have portrayed them as too old to be president. "I didn't comment on the former president's mental health, physical health and I'm not going to comment on the current president's mental health or...