By Yael T. Abouhalkah, Kansas City Star Editorial Page columnist

Mark Funkhouser's public approval rating has fallen to one of the lowest ever for a Kansas City mayor.

It was around 35 percent about a month ago. And his unfavorable rating?

It had skyrocketed to almost 50 percent, an unheard-of poll number in Kansas City, where people habitually love their mayors.

And these results measured public opinion before Kansas Citians became aware of the latest unprofessional moves by Funkhouser.

They include suing the City Council and working from home more often to be near wife Gloria Squitiro.

Plus, the poll was taken before the Funkhouser-led light-rail initiative failed at the polls on Nov. 4 and before the release of a disappointing citizen survey on how City Hall is providing basic services.

If anything, the mayor's favorable rating is likely worse now than a month ago.

The results make the strong point that -- while Funkhouser had weathered previous controversies -- they have now weighed down his popularity with rank-and-file Kansas Citians.

This is also a sharp turnaround from late August, when The Star reported that Funkhouser's poll numbers were "roughly equivalent to almost every mayor of the last three decades."

And that meant a favorable rating above the 50 percent mark, where Kay Barnes, Emanuel Cleaver and Richard Berkley usually were during their terms over the last two decades.

But now, Funkhouser appears to be in uncharted waters for a KC mayor.

The best way for the mayor to reverse his unfavorable numbers is to start working on City Hall's long list of challenges, especially in a tight economy.

That means cooperating with the City Council on ways to improve city services, to shape a responsible budget and to get a responsible sewer-repair plan to the public.

This is the kind of difficult work the old Funkhouser would have tackled with relish.

Right now, though, his attention is diverted by his unproductive battle with council members over Squitiro's future at City Hall.

That's unfortunate, because Kansas Citians need an effective and popular mayor now, more than ever.