WASHINGTON (AP) — A bipartisan agreement among a handful of senators to prevent deportation of hundreds of thousands of young immigrants includes a pathway to citizenship that would take up to 12 years.

The Associated Press on Saturday obtained details of the deal that includes $1.6 billion for structures including a wall for border security.

The agreement between three Republican and three Democratic senators would prevent deportation of hundreds of thousands of so-called Dreamers, who were brought to this country as children and are here illegally.

President Donald Trump and some GOP congressional leaders have said the bipartisan deal is insufficient. Its proponents — led by Sens. Dick Durbin, D-Ill., and Lindsey Graham, R-S.C. — say they are continuing to round up supporters in hopes of building momentum for their plan.

Political battle lines intensified following Trump’s vulgar description of African nations and derogatory comments about Haiti at a White House meeting last Thursday, and its fate is uncertain.

A showdown was expected by Friday, the deadline for Congress approving a spending bill to prevent a government shutdown the following day. Some Democrats are threatening to withhold needed votes for the budget measure unless there’s an immigration accord.

Some details of the bipartisan Senate compromise: