Pelosi endorses Joe Kennedy in Massachusetts Senate race

• Pelosi’s endorsement was a surprise to many in Washington, given she served 25 years with Markey in the House and the two have long been supportive of each other.

What she's saying: "Never before have the times demanded we elect courageous leaders as today, and that is why I am proud to endorse Joe Kennedy for Senate," Pelosi said in a video announcing her endorsement.

• "Joe Kennedy represents this party’s future. He will help lead Democrats forward on the defining battles of our time," Pelosi added in a news release from Kennedy's campaign, per the Boston Globe.

In an interview with the Washington Post, Pelosi cited her family's close ties with the Kennedys, including former President John F. Kennedy, as one reason that she decided to get involved in the race.

• "I wasn’t too happy with some of the assault that I saw made on the Kennedy family, and I thought, Joe didn’t ask me to endorse him, but I felt an imperative to do so," Pelosi said.

The other side: "Speaker Pelosi is an effective leader who has shattered glass ceilings throughout her career," Markey responded in a tweet Thursday. "I had the privilege to work alongside Nancy in the House for decades and any candidate would be proud to have her endorsement. I congratulate Joe Kennedy on securing her support."