Republican presidential front-runner Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE on Wednesday offered illegal immigration, healthcare and support for veterans as the first three issues he'd tackle in the White House.

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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 Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE, Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats 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.