House Republicans will look to get nearly $70 billion for immigration enforcement over the finish line Tuesday, enough to fund a pair of Homeland Security agencies through the next three years and the rest of President Donald Trump’s time in office.

Speaker Mike Johnson will need near perfect attendance and unity on his side to complete weeks of action on the bill. The legislation got sidetracked when Republicans sought to include $1 billion for enhanced security on the White House grounds, including for Trump’s new ballroom, and the Trump administration tried to create a nearly $1.8 billion fund to compensate allies of the president who claim they have been unjustly investigated and prosecuted. Those proposals proved politically toxic and were scrapped.

Now, the bill is focused entirely on immigration enforcement, a topic that Republicans have treated as a defining issue between the two major political parties and one they hope will carry them to victory in this year’s midterm elections. The bill provides $38 billion for Immigration and Customs Enforcement, $26 billion for the Border Patrol and another $5 billion to cover unforeseen costs, fueling Trump’s deportation agenda.

“It’s long overdue,” said Johnson, R-La., of the bill. “We have to fund border security and immigration enforcement, and it’s sad that Republicans have to do it on our own.”