Pressley joins a growing slate of minority women Democrats running in the November 6 midterm elections, including New York's Alexandria Ocasio-Cortez, who scored a similar upset over a long-time incumbent, and Minnesota state Representative Ilhan Omar, set to become the first Muslim woman elected to Congress.
Pressley called for defunding the federal Immigration and Customs Enforcement agency, known as ICE, which helped her draw support from Massachusetts' popular attorney general, Maura Healey, who's gained a national following for repeatedly suing President Donald Trump in an attempt to block his policies on immigration, gun control and other issues.
During the campaign, Capuano touted his credentials as an "unabashed liberal", but he found himself competing with Pressley over who was the more progressive candidate.
"It seems like change is on the way", Pressley said in her celebratory speech.
But here was Ayanna Pressley, a Boston City Council member and rising Democratic star, exhorting volunteers in a Cambridge restaurant with an impassioned performance style she learned as a child at her grandfather's storefront Baptist church in Chicago. "These are the kind of factors that Democrats need to have over the next two months if they are going to pull off victories in some of those really competitive races".
Pressley has always been identified as a rising star in the Democratic Party.
China's JD.com: Founder Returns to Beijing After US Arrest
However, officials from JD.com said that Liu was falsely accused and his arrest was based on unsubstantiated accusation. Both the name and birthdate of the person in the detention record matched that of Richard Liu.
Pressley represents the latest underdog candidate to have emerged to challenge both establishment Democrats and Republicans.
State lawmakers designated the district as the first majority-minority district in MA.
A survivor of sexual assault at Boston University and during her childhood, Pressley has been a vocal supporter of victims of sexual violence since long before the #MeToo movement.
Massachusetts' last Democratic primary upset came in 2014, when Seth Moulton defeated Rep. John Tierney in the state's 6th Congressional District.
Pressley will now represent the seat that in earlier forms was held by John F. Kennedy and Tip O'Neill.
Capuano was endorsed by prominent MA figures, including former Gov. Deval Patrick, the state's first black governor. Joe CrowleyJoseph (Joe) CrowleyPressley blasts Trump as "racist, misogynistic, truly empathy-bankrupt" Ocasio-Cortez congratulates "sister in service" Pressley after Mass. primary win Capuano falls to Democratic challenger Pressley in Mass. primary MORE (N.Y.).