The Hotel Trades Council, a city union that is so far the only one to back de Blasio's bid for the White House, has purchased an ad running on MSNBC to coincide with the debate.
The 30-second spot is meant to introduce the Democratic mayor to a national audience. It focuses on his signature achievement — implementing publicly-funded pre-K for 4-year-olds citywide.
"A lot of Democrats are telling you what they'd do if they became president. But New York City Mayor Bill de Blasio has already delivered for millions of working families," a female narrator says as the ad opens with a couple watching candidates flash on a TV screen before switching to a black family sitting snugly on a couch playing with their dog. The ad shows clips of the mayor reading to school children and delivering a speech and a welder working at a metalwork plant as headlines of the mayor's accomplishments appear on screen.
"Bill de Blasio isn't just a voice for working families; his bold and innovative approach should be your choice for president," the narrator concludes.
The six-figure ad buy, paid for by the political action committee Hotel Workers for Stronger Communities, will run immediately before or after the 10-person debates Wednesday and Thursday in the early voting states of Iowa, New Hampshire and South Carolina, a union spokesperson said.
Union President Peter Ward called de Blasio a "real friend" and emphasized policies he embraced that benefited the organization, including his increasingly tough stance on Airbnb, which operates largely outside of a regulatory framework in New York.