Elizabeth Warren writes: Cratering in the polls, besieged by sexual assault allegations and drowning in his own disgusting rhetoric, Donald Trump has been reduced to hollering that November’s election is “rigged” against him. His proof? It looks like he’s going to lose.

Senior Republican leaders are scrambling to distance themselves from this dangerous claim. But Trump’s argument didn’t spring from nowhere. It’s just one more symptom of a long-running effort by Republicans to delegitimize Democratic voters, appointees and leaders. For years, this disease has infected our politics. It cannot be cured until Republican leaders rethink their approach to modern politics.

Anyone with children knows that whining about imaginary cheating is the last refuge of the sore loser. But GOP leaders have served up such a steady diet of stories about imaginary cheating that an Economist-YouGov poll shows that 45 percent of Republican voters believe voter fraud is a “very serious problem,” and 46 percent have little or no confidence that ballots will be counted accurately. They hold these views even though there is literally no evidence — none, zero, zip — that widespread voter fraud is a factor in modern American elections. A recent study looked at around a billion ballots cast in the United States from 2000 through 2014 and found only 31 instances of impersonation fraud at the polls. [Continue reading…]

In the following interview, Al Cardenas, former Chairman of Florida Republican Party, is categorical in denying that there is any basis for Trump’s claim that this or any other election can be rigged.