Donald Trump and Marco Rubio Assess Their Nevada Results

— -- Donald Trump said his front-running presidential campaign is “looking pretty good” after its Tuesday night victory in the GOP Nevada caucuses.

"It was a great night," he told ABC News' George Stephanopoulos on "Good Morning America" today.

"We're looking pretty good, by any standard.”

A few minutes later, Sen. Marco Rubio told “GMA” co-anchor Robin Roberts that he congratulates Trump on winning, adding, "Well, we always want to do better.”

But he feels “good about our second-place finish," Rubio said.

Rubio and Sen. Ted Cruz were locked in a tight race for second in the Nevada GOP caucuses Tuesday night but ABC News projects that Rubio is second and Cruz is third.

Despite their respective first- and second-place finishes, Trump and Rubio have rarely attacked one another on the campaign trail.

Trump said in Nevada Tuesday night that he hasn’t gone after the Florida senator because Rubio has yet to “hit” him. If he does, however, "you will see what happens," Trump told the crowd.

Rubio said on “GMA” this morning that his campaign is not one that “attacks people,” but he will certainly “correct” Trump if there are policy differences or things with which he disagrees during the GOP debate Thursday night.

Both candidates said they were confident and looking forward to more states voting in the coming few weeks. But their opinions differed when it came to the importance of endorsements in the campaign.

Rubio has picked up numerous endorsements in the past week, saying today on “GMA” it is a sign that he can bring the Republican Party together.

But Trump said endorsements “mean very little” and he would prefer to “work with the people."