The 12-year-old daughter of an undocumented immigrant delivered an emotional speech at the Families Belong Together rally in Washington, DC, on Saturday.

Leah Cayasso stood up in front of an estimated 50,000 people across from the White House and revealed that she lives in constant fear that her mother will be taken away from her.

As she spoke, the young activist became increasingly overcome with emotion, fighting back tears as she asked: 'Don't they know how much we love our families? Don't they have a family, too? Why don't they care about us children?'

Leah Cayasso, a 12-year-old whose mother is an undocumented immigrant, delivered an emotional speech at the Families Belong Together rally in Washington, DC, on Saturday

The young activist fought back tears as she spoke about living in constant fear that her mother will be taken away from her, saying: 'I don't understand why this administration won't support mothers who just want a better life for their children. This needs to change!'

Rallies were held in more than 700 cities around the country on Saturday with protesters demanding the end of the Trump administration's policy of separating immigrant children from their families at the border.

The largest was held at the nation's capital in Lafayette Square, directly under the statue of the Marquis de Lafayette, who seen as one of the most prominent immigrants in American history.

Amidst addressed from several high-profile attendees including Lin-Manuel Miranda, America Ferrera and Alicia Keys addressed the crowd, Leah's words stood out.

'ICE wants to take away my mom from me. I don't like to live with this fear. It's scary. I can't sleep, I can't study, I am stressed,' she said.

'I am afraid that they will take my mom away while she is at work, out driving or at home.

'I don't understand why this administration won't support mothers who just want a better life for their children. This needs to change!'

She ended the two minute and 20 second speech by telling her mother in Spanish: 'I love you very much and will always fight for you.'

Leah was one of 50,000 protesters gathered in the capital to demand the end of the Trump administration's policy of separating immigrant children from their families at the border

The rally took place in Lafayette Square opposite the White House, directly under the statue of the Marquis de Lafayette, one of the most prominent immigrants in American history

Read Leah's entire address below:

'Dear community,

'My name is Leah. I am 12 years old and I am from Miami, Florida.

'I am the proud daughter of a domestic worker who loves me very much. My mom's job is very important, unlike other government stuff. She takes care of children as a nanny and makes sure they are healthy and safe. Our government instead harms children and deports parents every day.

'I am here today because the government is separating and detaining refugee parents and children at the border who are looking for safety. Our government also continues to separate US citizen children like me from their parents every day. This is evil. It needs to stop.

'It makes me sad to know that children can't be with their parents. I don't understand why they are being so mean to us children. Don't they know how much we love our families? Don't they have a family, too? Why don't they care about us children?

'Why do they hurt us like this? It is unfair that they got to spend time with their families today while there are children in detention centers and in cages all alone missing their parents who are thrown in jail.

'I live with the constant fear of losing my mom to deportation. My mom is strong, beautiful and brave. She is also a person who taught me how to speak up when I see things that aren't fair.

'ICE wants to take away my mom from me. I don't like to live with this fear. It's scary. I can't sleep, I can't study, I am stressed. I am afraid that they will take my mom away while she is at work, out driving or at home. I don't understand why this administration won't support mothers who just want a better life for their children. This needs to change!

'We cannot allow them to keep hurting families, communities and children. I know that together we can make things better for families and kids.

'I want to be an example to other kids who are going through the same problems as me. I want to tell kids at the border and all over the country not to give up, and fight for their families. We are all human, and deserve to be loved and cared for. We are children!

'Our government has to do the right thing and stop separating us from our parents and stop locking us up. I won't give up fighting for the right to stay with my mom. I am not asking for a favor. It is my right to stay as a child to live in peace with my mother and the rest of my family.

'Mamá, te quiero mucho y siempre lucharé por ti.'

Alicia Keys and America Ferrerra spoke at the Families Belong Together rally in Washington, DC, on behalf of migrant mothers who have been separated from their children

Chrissy Teigen spoke at the event while holding her newborn son Miles (left). Teigen's husband John Legend took to the stage to perform his new song Preach (right)