Republicans were quick to call out what they saw as a lack of action on the U.S.-Mexico border by Vice President Kamala Harris, following her endorsement by President Biden to be the Democrat nominee, but at least one immigration group is confident she can take on the GOP's top issue.

The Immigration Hub (TIH), a nonprofit immigrant advocacy group, told Newsweek that Harris' work as attorney general and then senator from California — in which her office tackled international criminal gangs while also making legal immigration pathways easier — meant she could counter Donald Trump's policies.

The GOP has spent much of the Biden administration attacking Harris' record on migration, pushing the idea that she was the "Border Czar" and arguing that she has not done enough to stop the flow of migrants arriving at the southwest border.

"I think I will need to triple the border wall, razor wire barriers and National Guard on the border," Texas Governor Greg Abbott said in reaction to Biden's endorsement of Harris on Sunday.