Trump shares first-day to-do list

Republican presidential front-runner Donald TrumpDonald TrumpFive takeaways from New Hampshire Senate debate Trump losing cash race in final weeks Vulnerable GOP senator questions opponent's American heritage MORE on Wednesday offered illegal immigration, healthcare and support for veterans as the first three issues he'd tackle in the White House.

Trump outlined his plan while declining to declare himself the presumed GOP nominee during a round of media interviews after his dominant win in the Nevada caucuses Tuesday night.

"First thing I'd do is knock out some of the executive orders signed by our president, especially the one on the border," Trump said on ABC's "Good Morning America."

He said that "people are allowed to come in and just pour into our country like Swiss cheese."

"I gonna work out immediately to knock out ObamaCare," Trump said, mentioning health savings accounts and predicting that President Obama's namesake law would be "dead by 2017."

Trump also said that on his first day as president, "We're gonna start taking care of the vets."

Fellow GOP candidates Marco RubioMarco RubioFive takeaways from New Hampshire Senate debate Obama plans 'aggressive' blitz for Clinton in campaign's final days One way or another, 2016 was all about Donald Trump's hands MORE, Ted CruzTed CruzDemocrats pounce on Cruz's Supreme Court comments Brent Budowsky: An epic battle for the future of Congress Cruz: Precedent exists for keeping Supreme Court short-staffed MORE and John Kasich are hoping to pull out wins next month, but all watched as the billionaire businessman picked up his third straight win with Nevada this week.

While Rubio has so far shied away from directly targeting Trump — though Trump predicted a looming fight is a "possibility" — both have sought to unload on Cruz.

Cruz picked up the endorsement of Texas Gov. Greg Abbott (R) on Wednesday as he looks to shore up support in his home state, where Trump signaled he would focus ahead of voting next week.