As the White House official responsible for overseeing implementation of President Obama’s massive infrastructure initiative, the 2009 Recovery Act, I’ve got a simple message for Democrats who are embracing President-elect Donald Trump’s infrastructure plan: Don’t do it. It’s a trap. Backing Trump’s plan is a mistake in policy and political judgment they will regret, as did their Democratic predecessors who voted for Ronald Reagan’s tax cuts in 1981 and George W. Bush’s cuts in 2001.

First, Trump’s plan is not really an infrastructure plan. It’s a tax-cut plan for utility-industry and construction-sector investors, and a massive corporate welfare plan for contractors. The Trump plan doesn’t directly fund new roads, bridges, water systems or airports, as did Hillary Clinton’s 2016 infrastructure proposal. Instead, Trump’s plan provides tax breaks to private-sector investors who back profitable construction projects. These projects (such as electrical grid modernization or energy pipeline expansion) might already be planned or even underway. There’s no requirement that the tax breaks be used for incremental or otherwise expanded construction efforts; they could all go just to fatten the pockets of investors in previously planned projects.

Moreover, as others have noted, desperately needed infrastructure projects that are not attractive to private investors — municipal water-system overhauls, repairs of existing roads, replacement of bridges that do not charge tolls — get no help from Trump’s plan. And contractors? Well, they get a “10 percent pretax profit margin,” according to the plan. Combined with Trump’s sweeping business tax break, this would represent a stunning $85 billion after-tax profit for contractors — underwritten by the taxpayers.

Second, as a result of the above, Trump’s plan isn’t really a jobs plan, either. Because the plan subsidizes investors, not projects; because it funds tax breaks, not bridges; because there’s no requirement that the projects be otherwise unfunded, there is simply no guarantee that the plan will produce any net new hiring. Investors may simply shift capital from unsubsidized projects to subsidized ones and pocket the tax breaks on projects they would have funded anyway. Contractors have no obligation to hire new workers, or expand workers’ hours, to collect their $85 billion. To their credit, the plan’s authors don’t call it a jobs plan; ironically, it is Democrats looking to align with Trump who have given it that name. They should not fool themselves.

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