[yongjik]

It's the other way. Under EC the election is often decided by a single state with tiny margin, and because America does not have the good sense to use a national standard voting system, it falls to the eccentricity of the particular state (and its counties) doing whatever they think is adequate. Look up the "hanging chad" controversy of 2000 - paper punching machines might have not worked properly for a few hundred votes and it potentially decided the outcome of the nation.

Under popular vote, even the minimal vote margins are quite large because it's aggregated at the national scale - e.g., Kennedy defeated Nixon in 1960 with only 0.17% difference in popular vote, which was still 113K votes.

To sway that election, you would've had to organize across multiple states to find a way to smuggle 113K votes illegally, while not getting any suspicions from poll workers and people tabulating results. And non of your co-conspirators should ever divulge it. It's so ridiculous that it approaches "9/11 was an insider job" territory.