Mr Lopez Obrador has alleged electoral fraud cost him the presidency, despite a recount confirming Felipe Calderon as Mexico's president-elect.
Electoral fraud causes people to lose elections. 
It caused Lopez to lose one. There for it can cause peopel to lose elections. 
( z1 cause :ARG0 ( z2 defraud :ARG1 ( z3 elect ) ) :ARG1 ( z4 lose :ARG0 ( z5 person ) :ARG1 z3 ) )