Senator James Wadsworth was a New York politician.
In the Timeless Universe
In the original timeline, Senator Wadsworth did not do much of note, according to Lucy Preston, but he becomes a target of Rittenhouse in the altered timeline. On March 4, 1919, Senator Wadsworth is assassinated by Rittenhouse sleeper agent Charlotte and his murder is framed on suffragette Alice Paul. Grace Humiston is able to deduce that Alice is not the killer, but by that time, Charlotte had already assassinated Alice as well.
James Wadsworth at Wikipedia