How did the political parties affect voter turnout when they were stronger?

Party is strong when their candidates are able to tap into the minds and hearts of the voters.  When they present programs and make them appealing to the public, they are able to strengthen the party and if the people like what they see and here, then more voters will turn out and vote.  

answer; overt behavior;

try something like republic or democracy joined or something because its talking about a election party.