David Prosser, now a Wisconsin Supreme Court justice, was speaker of the Assembly at the time. He said such rules can work.
"It seems to me a rule that ends debate at a reasonable hour, except in extreme circumstances, is a very sensible rule," Prosser said. "On the other hand, there's practical difficulty in making that rule work if everybody in the body doesn't appreciate the value of the rule."
Walker has found himself on both sides of the issue.
As a member of the Assembly in 1997, he voted with Republicans to eliminate the 8 p.m. curfew. But in his run for governor in 2010, after the Assembly pulled two all-nighters, Walker promised to sign legislation that would bar voting after 10 p.m. or before 9 a.m.
"I have two teenagers and I tell them that nothing good happens after midnight. That's even more true in politics," Walker said then. "The people of Wisconsin deserve to know what their elected leaders are voting on."
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