Senate Democrats have announced a $1 trillion infrastructure plan that begins what many hope will be negotiations with Republicans over their own infrastructure proposal, toward the passage of a bill later this year.

The Democrats’ plan calls for investment to modernize airports and waterways, rebuild schools and Veterans Administration hospitals, overhaul road and bridge repairs, equip rural communities with high-speed Internet, and invest in main streets across the country. The plan also has provisions for public-private partnerships to help facilitate these investments.

“The two plans are very different,” says Susan Lent, partner and leader of Akin Gump’s infrastructure and transportation practice. “On a macro level, both plans would direct more money toward infrastructure, but the approaches to doing so are different.”

At the moment, the Republican plan is the Trump White House plan. Congressional Republicans have not officially endorsed this plan, and it probably will be altered from the original that was announced Feb. 12.

“The White House plan would spend $200 billion in federal dollars over 10 years and includes incentives that the administration predicts will leverage over $1 trillion in total spending,” says Lent. “The Senate Democrats’ plan would spend $1 trillion in federal dollars over that same period, increase funding for existing programs and fund new programs. The White House has not explained how it would pay for its plan, whereas the Senate Democrats propose to pay for their plan by repealing some of the tax cuts Congress recently enacted.”

Democrats have proposed five measures to pay for infrastructure improvements:

• Return the top individual tax rate to 39.6 percent from 37 percent — $139 billion over 10 years
• Restore the individual alternative minimum tax — $429 billion over 10 years
• Restore the estate and gift taxes — $83 billion over 10 years
• Close the carried-interest loophole — $12 billion over 10 years
• Bring the corporate tax rate to 25 percent — $359 billion

“With both parties’ leadership now putting forth infrastructure plans, it’s time to turn this conversation into legislative action,” said American Society of Civil Engineers president Kristina Swallow in a statement. “Each day that Congress delays passing an infrastructure bill with strong federal investment, including a long-term fix to the Highway Trust Fund, every American family loses $9 because of the inconveniences that come from our outdated infrastructure.”

Much of the commentary and prognosticating about the Trump infrastructure plan, and now the Democrats’ response, has predicted a bill could not pass because the Republican plan is too vague on spending particulars and Democrats are asking too much from government coffers. Congress has a history of bipartisanship, however, when it comes to developing infrastructure legislation.

Drew Campbell is senior editor of Institutional Investing in Infrastructure.