Former President Barack Obama met with New York Mayor Zohran Mamdani for the first time on Saturday at a child care center where they read to preschoolers and led a singalong.

The meeting comes as Mamdani, a democratic socialist, is also trying to build a working relationship with Republican President Donald Trump. The meeting comes just over a week after Mamdani marked his 100th day in office.

Obama and Mamdani did not take questions after reading the book “Alone and Together” to the children and leading a singalong of “The Wheels on the Bus.”

The former two-term president and standard-bearer for the Democratic Party has offered to be a sounding board for Mamdani, 34, whose star power, youth and progressive agenda has made him stand out in Democratic politics.

Mamdani took office in January after a campaign centered on making New York City a more affordable place to live, centering his agenda on refocusing the vast power of government toward helping the city’s struggling working class.