(CNN) - New Mexico Gov. Bill Richardson Tuesday suggested he may endorse a former rival in the Democratic White House race sometime this week.
In an interview with CNN's Wolf Blitzer set to air at 6 p.m. hour of The Situation Room, Richardson praised both Hillary Clinton and Barack Obama, and suggested now might be the right time he publicly backs one of them.
"I may make a decision and do an endorsement," Richardson said.
Asked if the endorsement could come within the next couple of days, the New Mexico governor replied, "Possibly, yes."
Richardson, a former member of the Clinton administration, wouldn't hint at which candidate he was leaning towards, and said it's still possible he may make no endorsement.
"I'm just not trying to be cute. I just have felt that an endorsement by me, I don't think it is that significant," he said. "But I still might do it."
Both Clinton and Obama have heavily sought Richardson's backing since he dropped out of the race in January. Richardson, one of the highest ranking Hispanics in the Democratic Party, could give either candidate a boost in the Latino community ahead of Texas' primary on March 4. Latinos are expected to play a big role in that contest.
In the interview Tuesday, Richardson praised both candidates, and said the two are running a "classic race."
"Change versus experience," Richardson said of the race. "And obviously I ran on the experience mantle. It didn't work out too well. But I think they are both exceptional candidates, represent fundamental change. I think it is going to be very, very close. I don't think this race is over."
Watch the full interview with Richardson tonight on The Situation Room, 6 p.m. ET.
– CNN Ticker Producer Alexander Mooney