I've attached several items for your information. The most telling empirical data is the following from the Institute of Election Analysis:
"In the Governor's races, Perot's voters cast 18% of their ballots for the Republican candidates; 56% of their ballots for Democratic candidates, 17% for independent candidates, and 8% did not bother to vote for Governor. If Perot's voters had voted for Bush and Clinton in the same proportion that the voted for the Republican and Democratic candidates for Governor, Clinton's lead would have increased by 7.5 million votes."
Simply put, 56% of Perot voters voted for Perot and then cast their ballots for Democrats down the line. Only 18% of Perot voters cast ballots for GOP candidates meaning that if Perot had been out of the race - (by a margin of 38%) - Perot voters would have voted for Clinton - increasing Clinton's victory by over 7.5 million votes.
"THIRD PARTIES SPLIT THE VOTE:" DEBUNKED.