That's what he told Greta last night.
"VAN SUSTEREN: ... in the transcript, when you brought up the part about, basically, dirty tricks in the crowd, you said, Well -- he says, You -- as least you're quoted as saying, "You know, well, the only problem with that, because we thought about that, the problem that my only gut reaction that is right now, the lawmakers I've talked to have just completely had it with them. The public is not really fond of this."
"WALKER: Right. Because in the end, the protesters have not overwhelming. They realized they've come in from other states...
"VAN SUSTEREN: But you thought about it.
"WALKER: We do. We had people contact -- I'd had people -- I even had lawmakers and others suggesting riling things up.Read the whole transcript.
Larger context, here.