In any case, see the following story for evidence that the US government has been arming "terrorists" for years.
Mexico's left is especially wary of electoral fraud because it lost a presidential election in 1988 when the government was widely believed to have rigged the vote count.Add to this the fact that Fox seems to be best buddies with Bush, the White House was cheering for Calderon (a Harvard-educated lawyer and economist), and Bush and his gang are quite skilled at stealing elections, and... well, you do the math.
It is also deeply suspicious of the role in the election of Fox, who it says illegally voiced support for his former energy minister, Calderon.