Permit me to add to the list ...
A lot of principled conservative voters who are #NeverTrump will sit out this election, not cast a ballot for the presidential race, vote 3rd party, or write-in a protest vote.
Federal judges striking down state voter-photo ID laws is clearing the way for blacks, Hispanics, and union members to vote multiple times.
White poll watchers will be intimidated from working in non-white polling stations.
Voter fraud only has to work in 6 battleground states - FL(29), MI(16), NC(15), OH(18), PA(20), and VA(13) - for Hillary to win. Only NC went GOP in 2012, and John Kasich was the GOP governor of OH then, and he could not deliver it to Romney!
GOP governors (Scott-FL, Snyder-MI, McCrory-NC, and Kasich-OH) will not call their state parties to lawyer-up and prepare to contest the expected voter fraud. The GOP did not contest many incidents of voter fraud in 2012 when it was a close contest.
The Democrat governor of VA, Terry McAuliffe, is restoring the right to vote to convicted felons in VA.
An equally divided SCOTUS (4-4) will not be able to reverse Democrat skullduggery like it did in the general election of 2000.
What the Dems are doing is simply paving the way for a movement that will be unlike what we are seeing now, which is peaceful, WILL BE violent down the road.