Barack Obama unveils the last budget of his presidency Tuesday, a multitrillion-dollar plan that is dead-on-arrival in Congress but could shape the 2016 White House race.

Barack Obama unveils the last budget of his presidency Tuesday, a multitrillion-dollar plan that is dead-on-arrival in Congress but could shape the 2016 White House race.

Legislatively, the future looks bleak for Obama's 2017 fiscal year plan, which covers spending on everything from cybersecurity to cancer research.

Republicans who control Congress have already vowed to ignore it and draft their own version.

"Rather," in the words of House Budget committee chairman Tom Price, "than spend time on a proposal that, if anything like this administration's previous budgets, will double down on the same failed policies."

Adding insult to White House injury, spending announcements that would have made headlines in the first year of Obama's administration are likely to quickly dissolve into saturation coverage of the New Hampshire presidential primary, which also takes place Tuesday.

The plan will be a "coherent, prioritized budget that reflects the need to expand economic opportunity for everybody in United States," said spokesman Josh Earnest.

It will include plans to levy a $10-a-barrel tax on oil, a measure that would aggressively push Obama's efforts to wean the United States off fossil fuels.

A "computer science for all" program would give school $4 billion to teach a "new basic skill" and help modernize workforce skills.

Looking further afield, the proposal will include $7.5 billion - a 50 percent increase from the previous year - to fund the campaign against the so-called 'Islamic State of Iraq and the Levant' (ISIL) takfiri group.

That includes $1.8 billion to play for over 45,000 more GPS-guided smart bombs.

The budget also includes $3.4 billion - quadruple last year's amount - for operations in Europe.