President Trump says he will sign the bipartisan budget bill providing almost $1.4 billion for border security but he will also declare a national emergency to give himself greater latitude for addressing the issue.

The legislation is expected to pass both chambers of Congress as very few lawmakers have a stomach for another government shutdown, but some of the president's strongest allies are not happy with the contents of the bill.

"This certainly is not as acceptable as was advertised or previewed as recently as Tuesday. There are a number of concerning provisions," said Jessica Vaughan, director of policy studies at the Center for Immigration Studies.

Vaughan is fine with less money than Trump wanted. She is not OK with local governments having the power to prevent wall construction in their jurisdictions or providing legal protection to many smugglers because of language designed to shield those responsible for unaccompanied alien children at the border.

As for Trump's emergency declaration, Vaughan expects a limited expansion of executive power.

Listen to the full podcast to hear Vaughan explain why Trump really has no choice but to sign the bill and what this deal means for the next round of the immigration debate.