(CNN) –With an eye toward upcoming primary contests on March 4–including delegate-rich Texas– Sen. Barack Obama is appealing to lower-income Hispanic voters in a new Spanish-language radio ad released in the state Tuesday.
"Barack Obama is talking to me," says the announcer in Spanish. "He's faced many of the same challenges that we've faced in my family."
The sixty-second ad highlights Obama's "hard work" that helped him rise from humble beginnings and eventually attend Harvard Law School.
"And instead of accepting job offers that paid a lot of money, Obama decided to work with churches, giving a helping hand to those less fortunate in his community," the ad says.
Meanwhile, Sen. Hillary Clinton flew to El Paso for a campaign stop Tuesday as voters were still casting ballots in the Potomac primary.
In Texas, Clinton is counting on strong support from Hispanic voters, a group that has reliably turned out for her in the past. But after campaign manager Patti Solis Doyle - a Mexican-American - was ousted as campaign manager this weekend, some Hispanics are voicing objections.
"Hillary Clinton's campaign is in trouble and the highest-ranking Hispanic in her camp is paying the price," wrote the editorial staff of El Diario, a daily Spanish newspaper based in New York. "Clinton has worked hard for the Hispanic votes she has gained so far in this tight race, and it would be a mistake to risk alienating that base."
UPDATE: The Clinton campaign is releasing a radio advertisement aimed towards Hispanic voters in Texas that proclaims "Hillary is our friend,” and promotes the candidate's plan for universal health care.
"She respects our culture and understands the problems that affect our community," an announcer says in the thirty-second ad, which has been used to target Hispanics in previous primary contests. "Let's vote for Hillary…and we will have a better life."
- CNN Associate Producer Rachel Streitfeld