Wisconsin Gov. Scott Walker. (Michael Bonfigli/The Christian Science Monitor)

Wisconsin Gov. Scott Walker (R), who is seeking a second term this year but is also considered a potential 2016 presidential candidate, isn't promising to serve a full four-year term if he's reelected.

Asked by AP about the possibility, Walker said: "I'm committed to running for governor."

Asked again, he said, "I want to be governor, and that's the only thing I've been focused on."

The comments track with what Walker told Jonathan Martin -- now of the New York Times -- last year. At the time, Walker noted that he had run for Milwaukee County executive while still in the state legislature and for governor while still serving as county executive.

This is a standard question for politicians who would have to run for president while in their current office. New Jersey Gov. Chris Christie (R), for instance, wouldn't commit to a full term during his 2013 reelection campaign.

It didn't hurt Christie in any measurable way, but Walker isn't as popular as Christie was during his reelection campaign.

A recent automated poll from GOP-leaning pollster Rasmussen Reports showed 61 percent of Wisconsinites thought he should finish his term if reelected; another 22 percent said they wanted him to run for president.