He obviously thinks the American voters are stupid enough to be fooled by his attempt to save face after he realized how far the support for the bill had fallen:

Sen. Sam Brownback, R-Kansas, is defending his last-minute switch against the immigration bill Thursday, a change he made after it became clear the measure was doomed.

In an interview with CNN Radio Friday, the presidential hopeful claimed he was trying to send two messages at once.

“I wanted to send a clear signal that I am for comprehensive immigration reform but now is not the time, this is not the vehicle,” Brownback said.

The Kansas Republican initially voted in favor of cloture, or keeping the bill alive, during the pivotal Thursday roll call. But 15 minutes after he cast that vote, a flurry of opposition crystallized into 45 fatal votes against the bill and it became clear the bill was going to die. At that point, Brownback changed position.

(via)
It would have been better for him to have a scheduled a fund raiser so that he could have avoided the whole thing. Now everyone is calling him a flip-flopper and a candidate in the mold of Kerry.