It’s not a headline I take lightly, but it’s scary that almost 300 Republican candidates for U.S. Senate, House and key statewide offices around the country have denied or questioned the outcome of the last presidential election.

Not on the basis of proven facts but based on contrived conspiracy theories and marching orders from the candidate who lost the election because 7 million more voters cast their ballots for the other guy.

Almost 300 election deniers running for important offices is not an inconsequential or harmless number and many of them will win in November, influencing the conduct...