Sen. Elizabeth Warren (D-Mass.) has been one of President Donald Trump's biggest critics, which gave progressive liberals hope that she would run for president in 2020.

During an event in Revere, Massachusetts, on Friday, Warren announced that she will not run for president in 2020.

“I am doing my job every single day. I’m not running for president,” Warren told a crowd of approximately 300, the Boston Herald reported.

According to the Massachusetts Democrat, she is focused solely on resisting Trump's agenda, although she is up for re-election in 2018.

"We are focused on right now and need to be focused on the fights that are in front of us,” Warren said. “We barely escaped having health care rolled back for 25 million Americans. We’ve got a budget battle coming up. We got a possible shutdown of the government coming up in September. We have an immigration crisis on our hands. We got a Russia investigation."

Warren's senate campaign opponent, Republican state Rep. Geoff Diehl, says Warren is too busy focusing on being a national spokesperson for liberal policies than she is about representing those she serves in Massachusetts.

"She’s running for president. This is just, she’s taking us for granted, just sees this as a pit stop on her way to national office,” Diehl told Warren supporters outside the event, WBZ-TV reported.

According to Warren, it's important for Democrats to remain focused on their policy goals.

“We can’t just play this game of once every four years and getting focused there. We need to focus on the fights in front of us,” she said.