(CNN) Hillary Clinton is hoping her decision to tap Virginia Sen. Tim Kaine as her running mate will go down in history as a move that helped her capture the presidency, but it's already rife with historical implications. Here's a look at why Kaine's addition to the ticket is notable in US history. Sitting senator Kaine's selection extends a remarkable streak in which 17 of the last 18 Democratic conventions -- including the last eight in a row -- have nominated for vice president either a sitting senator or an incumbent vice president who was a senator when he was first elected.Here's a look at why Kaine's addition to the ticket is notable in U.S. history17 of the last 18 Democratic conventions have nominated for vice president someone who had served in the Senate
It's also worth noting that eight men who served as both a governor and a _ senator have been on a major-party ticket, most recently in 1968.