Only registered democrats would be able to vote in an open primary election to choose a candidate for the senate, although it should be noted that there are exceptions.
Answer: James Abraham Garfield
Explanation:
James Abraham Garfield was the 20th President of the United States of America. He was the President from 4th of March 1881 to 19th of September 1881.
He was shot in his back at the Baltimore and Potomac station, by assassin Charles Guiteau on the 2nd of July 1881. Although he survived the initial shooting, he died after eleven weeks.