Republicans dismiss Trump's first budget blueprint

Several GOP lawmakers spoke out against proposals within the budget.

Notably, it would also cut funding to the Environmental Protection Agency by $2.6 billion - a 31 percent reduction - and completely eliminate funding for 19 smaller agencies and initiatives, including the Corporation for Public Broadcasting and the United States Institute of Peace.

"It’s cheaper to do foreign aid, it’s cheaper to build, it’s cheaper to have foreign relations in terms of diplomacy than it is to buy a 2000 pound atom bomb," Kinzinger said in an interview with ABC News. "So a lot of the times the State Department doesn’t get the credit for what it does behind the scenes."

Some Republicans also expressed concerns with regional budget items.

“As has been stated in the past, Yucca is dead and this reckless proposal will not revive it. Washington needs to understand what Nevada has been saying for years: we will not be the nation’s nuclear waste dump," Heller said in a statement.

Sen. Chris Van Hollen, D-Md., who is leading Senate Democrats' campaign committee in 2018, called Trump's budget a "betrayal" of his voters.

"It’s always an opening offer to negotiate," he told ABC News. "That’s all a presidential budget is and it doesn’t have the force of law. It’s the president’s opening bid in a bargaining session back and forth."