Bob Dole encouraged other Republicans to "get on the train."
McAfee said the party had to focus on making the biggest impact before November.
Sanders has been campaigning hard in the state ahead of its June 7 primary.
Sanders wanted two convention committee chairs out for "personal hostility" toward him.
Sanders appears on two shows, and top Trump aides will speak as well.
Trump is reportedly looking into using an NFL football stadium.
Kaine said "we’re getting near that point."
Sanders wants Connecticut Gov. Dannel Malloy and former Rep. Barney Frank ousted.
Lisa Hagen 05/28/16 10:06 AM EDT
Meet some of the candidates hoping to go against Hillary Clinton and Donald Trump.
Sanders cautioned against picking "a conservative or moderate-type Democrat."