Your above example is not a quoted Cannon statement.
The direct quote from the article is this:
"Cannon says he voted for the law [HR4437] only after he was promised it would be watered down in conference committee. "
This article described Cannon's HR4437 vote in the context of Tony Yapias' group's endorsement of Rep Cannon:
http://deseretnews.com/dn/view/0,1249,635200155,00.html
"Tony Yapias of Proyecto Latino de Utah is among those working on a list of candidates who support comprehensive immigration reform — and a hit list of opposing candidates who don't. ... On a federal level, all three of Utah's congressmen voted for a measure to crack down on illegal immigration, but Republican Rep. Chris Cannon garnered the Utah Latino group's endorsement. Cannon has said that he voted for HR4437 to move the debate closer to a conference committee, where he hoped to produce comprehensive immigration reform.
Joe Hunter, Cannon's chief of staff, said "we're very pleased" with the endorsement but added, "Hispanic voters are not single-issue voters.
"This is not just about immigration; they are worried about jobs and education, just like everybody else," Hunter said.
Yapias said Proyecto Latino is also endorsing Sen. Orrin Hatch, R-Utah, who last week opposed comprehensive measures because of his work on the DREAM Act, to give undocumented youths a way to earn legal status through education, or military or community service.
Yapias said Cannon and Hatch have both been outspoken and taken flak, but it's hard to say where Democrat Rep. Jim Matheson or Republican Rob Bishop stand. He said Sen. Bob Bennett, R-Utah, has also been somewhat mum.
"It's either black or white for me," Yapias said. "Is the candidate supporting our cause or not?""
The bottom-line, FreeReign, is that voting for HR4437 is not a shift in Cannon's position - he still, as always, is a believer in the 'comprehensive' solution to illegal immigration, one that includes legalization of millions of illegal immigrants. (cf. his sponsorship of AgJobs bill and guest worker programs).