President Obama says Donald Trump has no evidence to back up his complaints about the election.

Trump's own evidence of vote-rigging doesn't add up

 (Scott Olson / Getty Images)
(Scott Olson / Getty Images)

Donald Trump’s assertions that voter rolls are crowded with ineligible voters are getting a lot of notice this morning, but my colleagues Noah Bierman and Michael A. Memoli report that the evidence he cites is faulty.

Trump alleges that dead people, those in the country illegally and voters registered in more than one state populate the voter rolls, saying Monday that “your politicians don’t tell you about this when they tell you how legitimate all these elections are.”

Where he does cite evidence, Trump is pointing to old or questionable research, The Times reports:

In the case of voter registration deficiencies, Trump pointed to outdated statistics for a record-keeping problem the federal government went on to address with a blue-ribbon panel of election experts that studied and recommended solutions. Some of them, including online voter registrations and data-sharing across state lines, were implemented in several states.

And the Washington Post op-ed on the odds of non-citizens voting that Trump mentioned, written by a pair of researchers, was followed by another piece undermining the methodology of the study, in line with many election experts.

Researchers have found that voter fraud is extremely rare, with only a handful of instances that would be highly unlikely to swing a national election. In a study conducted two years ago, Loyola Law School professor Justin Levitt found only 31 credible claims of voter fraud of more than 1 billion ballots cast since 2000.

And on Monday, Republican Sens. Marco Rubio of Florida and Pat Toomey of Pennsylvania spoke out against Trump's claims.

In separate debates, they proclaimed confidence in the system. Each of Florida’s counties runs its own independent election, Rubio noted.

“I promise you there is not a 67-county conspiracy to rig this election,” Rubio said. “There is no evidence behind any of this.”

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