Senator Bernie Sanders, speaking at a rally at Lehman College, lent his support to Mayor Zohran Mamdani’s effort to raise taxes on millionaires. The mayor was not present.

As an anti-apartheid lawyer, he was jailed several times. Later, he was a top adviser to Nelson Mandela and held key posts at the United Nations.

Jonathan Greenberger, an executive at the publication, will take over from John Harris, a co-founder of Politico.