NEW YORK - With the help of hand warmers and blankets, supporters and elected officials braved the frigid elements Monday to watch Mayor Bill de Blasio get sworn in for a second term.

The mayor took the oath of office just before 1 p.m. on the steps of City Hall.

Calling them the most "distinguished frozen group of people," de Blasio told the crowd he is ready to move the city forward on the foundation laid by his administration over the past four years.

"Something big is happening in New York City. Something new, something different. Something that has begun a new progressive era in this city's history. Every one of you are part of it," de Blasio said. "Something is being done here that matters to all of us but is also being felt far beyond our borders."

The mayor noted that the city ended the year as being one of the safest on record since the 1950s. He also highlighted the New York City Police Department's training efforts to restore trust between its officers and the residents they protect.

Flanked by his wife Chirlane and his children Dante and Chiara, Mayor de Blasio was sworn in by Vermont Senator and Brooklyn native Bernie Sanders, who took multiple jabs at the Trump Administration during his introduction speech.

"At a time when we have a massive and growing level of income and wealth inequality, we have a government in Washington which has just provided the billionaire class with hundreds of billions of dollars in tax breaks while raising taxes on millions of working class families," Sanders said.

Also sworn in Monday was Public Advocate Letitia James and City Comptroller Scott Stringer.

Mayor de Blasio was officially sworn in to his second term Sunday afternoon. The private ceremony took place at Gracie Mansion.

By law, the mayor had to be sworn in before his first term ended at midnight.