Then-Democratic presidential candidate Steve Bullock's proposal would tax corporations based on how many U.S.-based jobs that the company creates. (Associated Press)
In this Sept. 14, 2016, file photo, former President Bill Clinton speaks while campaigning for his wife, Democratic presidential candidate Hillary Clinton in North Las Vegas, Nev. (AP Photo/John Locher, File)
Jane O'Meara Sanders joins her husband, Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., at a campaign rally, Monday, May 9, 2016, in Atlantic City, N.J. (AP Photo/Mel Evans) ** FILE **
Former President Bill Clinton waves to a cheering crowd as he arrives during a campaign stop for his wife, Democratic presidential candidate Hillary Clinton, Monday, Jan. 4, 2016, in Nashua, N.H. (AP Photo/Jim Cole)