Arizona senator Jeff Flake plans to introduce a proposal offering temporary protection for “Dreamers” in exchange for funding for the construction of President Donald Trump’s border wall when the Senate returns next week.

Flake’s plan would protect from deportation nearly 700,000 unauthorized immigrants who were brought to the United States as children and were previously protected under the Obama-era Deferred Action for Childhood Arrivals program, which Trump announced in September he would end, effective in March. The bill would extend protections to DACA recipients for three years and would allocate $7.6 billion to fund the first three years of expensesfor Trump’s wall.