MILWAUKEE (AP) -

A Milwaukee County judge says he won't let the upcoming trial for a former Scott Walker aide turn into a referendum on the governor.

Judge David Hansher said Monday he'll emphasize to jurors that Kelly M. Rindfleisch is on trial, not Walker. He also says neither side may ask potential jurors about their political preferences or for whom they voted in the last governor's election or the recall election.

Rindfleisch used to be Walker's deputy chief of staff when Walker was Milwaukee County's executive. She's accused of doing campaign work on county time.

The 43-year-old has pleaded not guilty to four felony counts of misconduct in office.

Prosecutor Bruce Landgraf and defense attorney Frank Gimbel both declined comment after Monday's hearing. Rindfleisch's trial is set to begin Oct. 15.

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A former top aide to Gov. Scott Walker is due in court for her final pre-trial hearing on misconduct charges.

Kelly M. Rindfleisch used to work for Walker when he was the Milwaukee County executive. She's accused of doing campaign work on county time.

Her pre-trial hearing is Monday morning.

The 43-year-old has pleaded not guilty to four counts of misconduct in office. The charges carry a maximum combined penalty of six years in prison and a $40,000 fine.

Her defense lost an earlier bid to have the case dismissed. Defense attorney Frank Gimbel had argued that some of the allegations in the criminal complaint were based on statements Rindfleisch made to investigators in 2002 under the promise of immunity.

Her jury trial is scheduled to begin in three weeks.