The board of the Arizona State Troopers Association voted to endorse Rep. Kyrsten Sinema, D-Ariz., for the Senate. Then their members revolted, and the organization rescinded its endorsement.

"All members are encouraged to vote for the candidate they personally support," read an email first obtained by the Arizona Republic. “AZTroopers will refrain from any political statements concerning the race until the conclusion of the election."

That is a wise decision. Sinema is quickly becoming a danger to her own campaign and anyone who associates with her. She had the lead over Republican candidate Rep. Martha McSally until Sinema's own words came back to haunt her.

For example, her old comment that stay-at-home moms were “leeching off their husbands or boyfriends.”

Sinema also called Arizona “the meth lab of democracy,” said she couldn’t condemn anarchist destruction of property, welcomed witches to her anti-war rallies, and disparaged Arizonans as “crazy” and thieves of Colorado's water.

Obviously, endorsing a candidate like that doesn’t help the straight-laced image of the Arizona state troopers. Unfortunately for her, the troopers pulled the endorsement after Sinema tweeted about it, sent out a press release about it, and cut a 30-second television ad about it.

More than embarrassing, the entire episode forces an important question on voters: If the Arizona State Troopers Association, a respected and authoritative organization, doubts the character of the candidate, shouldn’t the voters have doubt too?

The more that is learned about Sinema's past, the less likely her chance of victory. The troopers had endorsed her in three previous House races. The polls in this race had her up by as much as 11 points, but she has now trailed in the last two polls.