WASHINGTON — On infrastructure, President Trump wants to offer a two-for-one deal.

The Trump administration intends to propose a package of tax breaks meant to help spur $1 trillion in new spending on roads, bridges and other construction over the next decade. But as part of that bill, Trump also wants introduce measures to drastically shorten approval times for projects.

The strategy appears aimed at building support for an effort with little momentum in Congress. Democrats are critical of Trump’s focus on public-private partnerships, rather than more traditional funding, while many conservative Republicans have balked at the idea of a massive government investment.

Trump, a former real estate executive who claims a passion for building, is looking for enticements that might bring his party on board.

His National Economic Council is currently crafting changes to the law to speed up the regulatory process, so that construction could start sooner and builders would find it easier to finance projects.