Homeland Security Secretary Alejandro Mayorkas faced rumours of resignation ahead of the midterm elections due to the Republican's pledge to impeach him, however, he squashed those rumours at a town hall with senior staff members.
Despite these controversies, Mayorkas has been proactive in efforts to manage the crisis occurring at the US-Mexican border.
Mayorkas was appointed as head of the Department of Homeland Security (DHS) under the Biden administration, has been known for his efforts to confront extremist domestic terrorism, gain control of cybersecurity measures and maintain domestic stability.
Mayorkas appeared before congressional committees to answer for DHS's efforts to curb immigration across the southwest border.
This comes as roughly 10,000 migrants have been waiting in squalid, makeshift shelters underneath a bridge in Del Rio, Texas.
In a statement, Mayorkas described the situation as "completely unacceptable" and also mentioned that the Biden administration officials were working on a comprehensive and long-term solution.
This situation follows the largest number of migrants to attempt to cross the southern border in 21 years, with over 200,000 migrants being apprehended in July alone.
Mayorkas' upcoming testimony was preceded by that of the border officials on Tuesday, who testified before the House Committee on Oversight and Accountability.
This hearing examined recent incidents of increased migration, focusing mainly on the rapidly escalating migrant population under the Del Rio International Bridge.
However, Republican critics have claimed that the Biden administration's policies of reversing Trump's stricter immigration policies have resulted in an influx of migrants, contributing to the border crisis.
Nevertheless, Mayorkas and the administration remain dedicated to reforming the immigration system in a humane and efficient manner, while also prioritising the security of the nation.