Gubernatorial candidate Rob McKenna should fire a campaign staff member who posted tweets insulting Asians and elderly people.

In a Twitter update posted in January, Kathlyn Ehl wrote “shut up and speak english #asians.” In another, she wrote, “If it takes you an entire green light to walk in front of my car GET A WHEELCHAIR #toooldtowalk.”

I think @KathlynEhl may be #toodumbtotweet.

Ehl has apologized. She needs to post an apology on Twitter. McKenna said in a statement that Ehl realizes her comments were hurtful.

The tweets were first reported by The Stranger’s Slog, then by our news side reporter Brian Rosenthal on The Seattle Times’ Politics NW blog. The tweets have apparently been deleted but here is an archived copy of one of Ehl’s tweets.

Our editorial board endorsed McKenna, a Republican and Washington state’s attorney general, who is running against Democrat and former congressman Jay Inslee. This incident makes me wonder: If McKenna is willing to forgive and forget this behavior, what behavior would he tolerate in the office of the governor?

I understand naive social media indiscretions. In December, U.S. Rep. Rick Larsen fired three of his staff members after they drank at their desks and tweeted about it. Those tweets look like childish antics compared to Ehl’s posts, which are offensive to Asians, senior citizens and humans.

The tweets are also dumb. It would be impossible to shut up, and speak English at the same time. It’s surprising that McKenna, who has cast himself in this election as the smartest kid in class, is willing to put up with this level of ignorance.