Elizabeth Warren, the presumptive Democratic nominee for Senate in Massachusetts, will launch the first television ad of her campaign Tuesday.

In a 60-second biographical spot, she introduces voters to her story, attempting to frame her own narrative before Sen. Scott Brown (R-Mass.) and his allies are able pin her with what she deemed “a bunch of ridiculous attack ads” to come.

“I want to tell you who I am,” Warren says directly to the camera. She outlines her upbringing, noting she “came up the hard way.”

“My dad sold carpet. When he had a heart attack, my mom went to work so we could keep our house. We all worked. My three brothers joined the military. I got married at 19, had two kids, worked my way through college, taught elementary school, then went to law school,” she says, as photos of her early life flash on the screen.

It’s a prebuttal to the GOP line on Warren, that as a Harvard Law School professor she is an out-of-touch elitist.

In the rest of the ad, Warren outlines her professional work for the middle class and her fight for the creation of the Consumer Financial Protection Bureau. “But Washington is still rigged for the big guys, and that’s gotta change,” she says.

Her campaign declined to release the size of the buy. Spokesman Kyle Sullivan told Roll Call it is “a statewide buy that’s aimed at allowing Elizabeth to tell her story and explain her fight to the people of Massachusetts.”

Even though the election is about a year away, Warren’s ad will be the third recent substantial buy in the campaign. Two outside groups have already gone on air in the race. Republican-aligned group Crossroads GPS went up with an anti-Warren ad last week. The League of Conservation Voters, a group that often supports Democrats, put up an almost $2 million buy beginning last month that slammed Brown on his environmental record. That ad was still playing today on cable television.

The ads are part of a broader fight for control of the race’s narrative and the votes of key working and middle-class conservative Democrats.

Roll Call Politics rates this race a Tossup.

Watch the ad: