Some in Trump’s administration, like Homeland Security Secretary Kirstjen Nielsen, advocate for a diplomatic approach using relationships with Honduras, Mexico, and El Salvador and the United Nations to stop the flow of migrants arriving to the U.S.

“We fully support the efforts of Guatemala, Honduras and Mexico as they seek to address this critical situation and ensure a safer and more secure region,” Nielsen said in statement earlier this week that noted her department was closely monitoring the possibility of gangs or other criminals that prey on those in “irregular migration.”

But others are agitating for more immediate options, including declaring a state of emergency, which would give the administration broader authority over how to manage people at the border; rescinding aid; or giving parents who arrive to the U.S. a choice between being detained months or years with their children while pursuing asylum, or releasing their children to a government shelter while a relative or guardian seeks custody.