A colleague of the Milwaukee judge accused of helping a Mexican immigrant evade arrest testified Tuesday that she was shocked by her fellow judge’s behavior.

Prosecutors worked Tuesday to paint a Milwaukee judge accused of helping an immigrant evade arrest as rudely approaching federal officers and making it more dangerous for them to do their jobs.

The move was a setback for prosecutors with the state Department of Justice who filed the charges and initially called for pushing ahead with the hearing for Ken Chesebro, an attorney who advised Trum...