MADISON, Wis. (AP) – Assembly Democrats want to delay any action for at least a month on a bill designed to pave the way for a new iron ore mine to be opened in northern Wisconsin.   Democrats objected Wednesday at the beginning of a committee meeting to vote on changes to the bill. Democrats asked for the panel to adjourn and reconvene a month later.  But Republicans who control the committee moved ahead with discussion of the amendments being offered by the bill’s GOP sponsors.   A Senate committee is also considering the bill Wednesday. Democrats spent nearly an hour straight railing against the measure at that meeting, accusing Republicans of ignoring people in northern Wisconsin and complaining the bill weakens environmental standards.   It was unclear when either committee would vote on the measure.