Sen. Mazie Hirono has visited a processing center at the Texas border.
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There has been a sudden rise in the number of families and children who have crossed into the United States in recent months with hopes of fleeing widespread poverty and violence.
Once a debate over how to fix a broken system and provide a path to citizenship for millions, it has now become a race to decide how to increase border patrols and send people back quickly.
Hundreds of children were sent back last week.
After visiting the border and processing center, Hirono says some of the children should qualify for asylum.
"Not that we should amend the law that provides protection for unaccompanied children. That is not the first response. We should not figure out how to make it easier to deport the children," said Hirono.
In many states demonstrators are gathering to protest all forms of amnesty for illegal immigrants.
President Barack Obama has requested $3.7 billion from Congress to help with the crisis at the U.S.-Mexico border.