Republican Senator Ted Cruz blamed President Barack Obama and the Democrats for the humanitarian crisis at the southern border, Fox News reported on Sunday.

Denying claims that he is blocking legislative measures to solve the border migrant issue, Texas Sen. Ted Cruz (R) squarely lays the blame on the Obama administration for holding illegal migrant children "hostage" with promises of "amnesty."

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"We're seeing tens of thousands of young children coming in illegally, being brutalized, being mistreated by global transnational drug cartels. And the cause of this crisis is the promise of amnesty," he said on Fox News Sunday.

Cruz cited Obama's move to grant reprieve to 800,000 illegal migrants who crossed the border when they were still children, displaying a promise of a better life to the abused youth of Central America.

"If you look at the history of this issue, in 2011 there were roughly 6,000 children apprehended coming in illegally," Cruz told Fox concluding that the direct consequence of his action was the current pressing humanitarian crisis.

"...the number of unaccompanied children skyrocketed so that this year the Obama administration is estimating 90,000 kids will come next year, 145,000. That's up from just 6,000 three years ago."

Members of both sides looked into the existing human trafficking law passed in 2008 that demanded a more lenient treatment to emigrants as a major contributing factor to the problem, Cruz, however, disagrees.

"The cause of this crisis isn't the '08 law. The cause of the crisis was in June of 2012, President Obama's granting amnesty," he said stressing that the number of border-crossers did not escalate after the 2008 law was passed.

In recent reports, Senate Majority Leader Harry Reid (D-Nev.) has accused the Republicans of holding the migrant youths "hostage" to assure changes in the country's deportation procedures.

However, Cruz had thrown back the blame to them saying that their side is using the children to create the border crisis and push an immigration reform through the Congress.

Meanwhile, Texas Governor Rick Perry, who is considering presidential bid in 2016, called for the U.S. to deploy drones and add more security personnel along the US-Mexico border.

He told the Associated Press on Saturday that his state is prepared to take over if the federal government cannot seal the border.

"If the federal government will not do its duty then I will suggest to you that the state of Texas will," he said.

TagsRepublicans, Democrats, border crisis, U.S. President Barack Obama