Immigrant-rights activists and allies protested across the country Thursday as part of the "National Day of Action for a Clean Dream Act," and an Arizona State University activist was among those arrested at the protest.

On the anniversary of President Donald Trump's election, hundreds of immigrants and allies from multiple states traveled to Washington, D.C., to protest on Capitol Hill while hundreds more held walkouts at high schools and universities nationwide.

It has been two months since the Trump administration announced it would end an Obama-era program that offers temporary deportation protection and work permits to immigrants brought to the U.S. illegally as children, often called "dreamers."

Trump said he would give Congress a six-month window to extend some level of protection to those affected.

On Thursday, protesters pressed Congress to pass a permanent solution for those affected.

ASU student, activist and dreamer Belen Sisa and 14 others were arrested in Washington D.C., as part of the protests, law enforcement confirmed.

"If you are reading this, I have been arrested and am in jail," stated a Facebook post on her page that was liked more than 1,000 times in two hours.

"I am willing to put my livelihood and ability to stay in this country at risk, because as a person with DACA it was crucial for me to speak out for justice for all undocumented people. Because I am tired of being used as your political pawn for a white supremacist agenda, and I demand to be seen for my humanity not just what I have to offer you."

Who is Belen Sisa, and what is DACA?

Sisa's parents visited the United States from Argentina when she was 6 and overstayed their visas. However, she is shielded from deportation by President Barack Obama’s Deferred Action for Childhood Arrivals program.

DACA allows young undocumented immigrants without serious criminal records who were brought to the United States as children to register their personal information with the government. In exchange, they can receive federal work permits and a two-year reprieve from the threat of deportation.

The program allows them to obtain a Social Security number and a driver's license but does not offer a pathway to citizenship.

About 800,000 people currently are covered under the program, including nearly 28,000 in Arizona.

Sisa is an outspoken advocate for dreamers: She has led local and national fights for migrant rights, including pushing for in-state tuition for dreamers at Arizona colleges and organizing protests to stop deportations.

MORE:Arizona 'dreamer': 'Hard to believe I’m standing in the middle of it all'

Push for permanent solution for 'dreamers'

The protests Thursday pushed for the Dream Act, proposed legislation that would allow certain young migrants who came to the U.S. as children and graduated from high school the opportunity to earn permanent residency in the U.S.

The day was organized by United We Dream, an national organization led by immigrant youth.

According to United We Dream, "a clean Dream Act means Congress must swiftly pass this widely popular bipartisan bill without any additions or amendments that will put our families and the rest of our immigrant community at greater risk for undue detention and deportation."

Other protests across the country Thursday included walkouts at the University of Portland, multiple locations in Texas, and The George Washington University and Trinity Washington University in Washington, D.C, and at least a dozen others.

Sisa was part of a group of Arizona activists who traveled to Washington for the protests, including Aldo Gonzalez, who works with LUCHA, an Arizona advocacy group that works on issues for low- and moderate-income Arizonans.

Gonzalez said Sisa was arrested alongside at least a dozen others at the Hart Senate Office Building.

United States Capitol Police spokeswoman Eva Malecki confirmed that 15 people were arrested and charged with "crowding, obstructing, or incommoding."

Sisa posted Thursday that she "participated in this action because my heart led me to commit myself to put everything on the line for something much bigger than myself.

"I did this for every undocumented person who feels voiceless, for every family that is scared for their children who had DACA, for those who’s future is in the midst of uncertainty counting down to March 5th when work permits will begin to expire and need action.

"I am doing this because we need change in our immigration system and we will no longer be ignored. We are not victims, we are warriors."

Sisa posted Thursday afternoon that she was released and "still absorbing all the feelings I felt."

READ MORE:

Deported 'dreamer' arrested at U.S. border

Arizona activists protest for 'clean' Dream Act

How 'dreamers' banded together for DACA deadline