After the 1992 US presidential election, Barry Burden and I became interested in whether Ross Perot took more votes away from George Bush or Bill Clinton (the answer is Clinton) and whether his candidacy increased turnout (it did, by about 5 percentage points). LacyBurdenAJPS1999
I then wrote on Jessee Ventura's candidacy in Minnesota in 1998 (with Quin Monson): Lac_Monson_PRQ ...and on elections in Taiwan (with John Hsieh and Emerson Niou).
In an unpublished paper with Barry Burden, we show that votes for George Wallace in '68, John Anderson in '80, and Ross Perot in '92 and '96 (as well as Ventura in MN) came from similar voters: white males. Is this the group of voters you would expect to be disaffected by the two major parties?