Hillary Clinton: Supreme Court Immigration Decision 'Could Tear Apart' Millions of Families Trump has yet to react to today's Supreme Court decisions.

 -- Hillary Clinton, who has pledged throughout her campaign to take on immigration reform in her first 100 days as president, called today’s Supreme Court ruling “heartbreaking” and “unacceptable.”

“Today’s heartbreaking #SCOTUS immigration ruling could tear apart 5 million families facing deportation. We must do better,” she tweeted.

The Supreme Court’s 4-4 deadlock blocked the Obama administration policy that would have offered more than 4 million undocumented immigrants a chance to remain in the country without fear of deportation.

In a statement released in both English and Spanish, the presumptive Democratic nominee reiterated her belief that President Barack Obama is within his constitutional rights to use executive actions. She said the decision underscores the high stakes in the presidential election.

“This decision is also a stark reminder of the harm Donald Trump would do to our families, our communities and our country. Trump has pledged to repeal President Obama’s executive actions on his first day in office. He has called Mexican immigrants ‘rapists’ and ‘murderers.’ He has called for creating a deportation force to tear 11 million people away from their families and their homes,” she said.

Trump responded to the decision this afternoon, calling President Obama's executive action "the one of the most unconstitutional actions ever undertaken by a President" in a statement released today.

"Clinton has pledged to expand Obama's executive amnesty, hurting poor African-American and Hispanic workers by giving away their jobs and federal resources to illegal immigrant labor – while making us all less safe," the statement read.

Clinton has said she will do everything she can to protect the Obama’s executive actions and that she plans to “go further” if she wins the White House in November.

Meanwhile, she called the high court’s decision upholding the University of Texas’ admissions policies as a “win for all Americans.” The 4-3 ruling rejected a challenge by Abigail Fisher, a white Houston resident, who was denied admission to the University of Texas in 2008 and filed a lawsuit challenging the university’s consideration of race in admissions.

“Having a student body with diverse experiences and perspectives breaks down barriers, enriches academia and prepares our young people to be leaders and citizens in our increasingly diverse country,” Clinton said in a statement.

ABC’s Alexander Mallin contributed to this report.