Victoria Iscayau jots down her schedule in a worn, yellow book decorated with the American flag and the words “God Bless America.”

She pencils in day shifts as a baby-sitter and nights as a Harvard Law School janitor. Workers’ rallies and presidential canvassing all go into the same book. She’s written down these and more and soon she’ll write in a new one: citizenship classes.

“I’m going to keep working while God gives me energy,” says Iscayau, an immigrant grandmother who came here from Guatemala more than 20 years ago.

“If I could learn English, I’d run for office,” she says, with the help of a translator.

Iscayau is a political junkie. She went door-to-door campaigning for former Vermont Gov. Howard B. Dean. She has spoken at “so many” workers’ rallies that she cannot even produce a number. As a non-citizen, Iscayau is not eligible to vote in U.S. elections, but that has not prevented the leadership of the Service Employees International Union (SEIU) from taking notice of her political acumen.

She was chosen as one of five members to sit on Local 615’s Political Action Committee in 2000 and remains one of its most active members.

The 13,000-member Local 615 represents all of Harvard’s custodians.

“She has a sincere interest in helping to get the immigrant worker community organized in Boston,” says SEIU organizer Aaron Bartley, who has known Iscayau since she came to work at Harvard three years ago.

“It’s a very new community in many ways in the sense that since 1990, tens of thousands of Central American workers have arrived in Boston and are quickly becoming a formative political force,” Bartley says.

The political action committee is currently working to pass a bill through the State House that will allow immigrant workers to obtain driver’s licenses, according to Bartley, but it also takes part in national politics.

Last fall, Local 615 sent Iscayau to represent the district at the national presidential endorsement meeting in Washington D.C., where the Union’s rank-and-file members handed Dean his first and last labor endorsement.

“The union picked me because I talk a lot,” Iscayau says with a laugh.

At the endorsement conference, Iscayau and representatives from locals across the country heard from eight of the Democratic candidates before voting for the candidate they thought the SEIU should endorse.

Though not technically bound by the membership’s ballots, SEIU President Andrew L. Stern declared Dean the SEIU’s choice.

Iscayau has pictures of herself with all of the Democratic contenders who spoke at the convention, including Dean, which she has sent to relatives in Guatemala. The SEIU has no problem with non-citizens’ potentially choosing the next U.S. president, Bartley says.