Donald Trump will be 70 years old when he takes office on 20 January 2017. Ronald Reagan was a few days shy of his 74th birthday when he took office in January 1985 (upon being elected to a second term). Here is how old four Democrats will be on 20 January 2021, which is the earliest they could take office:
- Bernie Sanders: 79
- Joe Biden: 78
- Hillary Clinton: 73
- Elizabeth Warren: 71
Sanders and Biden will be too old. If Warren is healthy, she could run in 2020. Clinton is in bad health, so she won't be able to run again.
