Congressional Republicans are vowing to trim President Obama’s $3.7 billion spending request for the migrant crisis on the southern border. The funding would be used to speed up deportations, as well as to improve care for thousands of children being held in detention centers, holding pens and temporary housing facilities. Republicans say they intend to make cuts when the House Appropriations Committee takes up the measure on Tuesday. Over the weekend, Senator John McCain of Arizona called for the mass deportation of migrant children caught at the border.

Sen. John McCain: “We have to move quickly to repatriate these children. The only way that this is going to stop is if planeloads of children arrive back in the countries in Central America that they came from and their parents see the $3-$4-$5-$6-7,000 that they have paid to the human traffickers is wasted. That’s the only way that this is going to stop.”

In a rare point of agreement with the White House, several Republicans have backed President Obama’s request for a waiver that would let the government deport children from Guatemala, Honduras and El Salvador as quickly as it does those from Mexico. A 2008 anti-trafficking law says children from countries that do not directly border the United States must be allowed to stay while their cases are processed. Many Democrats have opposed the waiver. On Friday, Democratic Rep. Luis Gutiérrez said the current crisis shouldn’t draw attention from the need for comprehensive immigration reform and an end to record deportations.

Rep. Luis Gutiérrez: “I want the president to be as bold and generous as Republicans have been petty and mean-spirited on immigration. We cannot let the current turmoil at the border — which we would be doing an even better job of controlling had this Congress addressed immigration reform — we can’t let this crisis distract us from the fact that record-breaking levels of deportation, and the threat of deportation, are taking a devastating toll on American communities throughout our nation.”

The Department of Homeland Security says it expects to begin deportations from the temporary detention facilities later this week.