A pediatrician is running for Senate. Can doctors change the political debate over health and science?

After Lindsey Graham's death, Democrat Annie Andrews finds herself in a closely watched race as she seeks to flip his Republican seat

Annie Andrews was a dark horse Democrat challenging a five-term Republican in the US Senate when 314 Action, a political action fund devoted to electing scientists and doctors, first backed her.

Now, after the unexpected death of Senator Lindsey Graham, Andrews finds herself in a closely watched race. Donald Trump persuaded South Carolina voters last week to select Graham's sister, Darline, as the new Republican candidate. They will face off in November in an election still heavily favored to keep the seat in Republican hands in the conservative state.