Republican presidential candidate Mitt Romney's Spanish-speaking son, Craig, gave a pitch for his father to Latino voters on Thursday, becoming emotional when he spoke about his grandfathers who immigrated to the United States.

"It’s easy to forget that the story of my father’s success begins with the story of two immigrants--," he said, becoming emotional. "-- my grandfathers -- who came to this country with little more than hope in the opportunity of America."

His speech, along with a video featuring eight Hispanic Republicans who endorsed Mitt Romney, summarized the Republican Party's message to Latinos this year: that their party is more in line with the community's values.

So far, Romney isn't breaking through among Latino voters, still trailing President Barack Obama by huge margins. But Republicans this week have argued that Latinos are being taken advantage of by a president who doesn't serve them, or, as Ann Romney said Wednesday, are voting based on biases rather than the issues.

"When I think of the Republican party of Lincoln and Reagan, I see a political movement very much in line with values that Latinos share," Sen. Marco Rubio (R-Fla.) said in the video, which aired ahead of his speech later in the evening.

Seven other prominent Hispanic politicians spoke in the video: New Mexico Gov. Susana Martinez, Rep. Raul Labrador (R-Idaho), Nevada Gov. Brian Sandoval, Puerto Rico Gov. Luis Fortuno, Rep. Ileana Ros-Lehtinen (R-Fla.), Rep. Mario Diaz-Balart (R-Fla.) and Rep. Quico Canseco (R-Texas).

One of their arguments was that the GOP is welcoming to Latinos, the majority of whom voted Democratic in the past and plan to again this year. The politicians pointed out that Hispanic Republicans have done well recently, with three elected governor and one elected to the U.S. Senate. "Our Hispanic-American elected leaders are as diverse as our people," Martinez, who spoke on Wednesday about her switch from Democrat to Republican, said in the video.

"It's not just about 'Sí, se puede,'" Canseco said, referring to Obama's "yes we can" message from 2008.

"It needs to be about 'como se puede,'" Labrador said.

Romney also appears in the video, sticking more to an economic argument and promising not to let Latinos down.

"America's entrepreneurial spirit is alive in the Hispanic community," Romney said. "Millions of Hispanics working hard to achieve a better future for their loved ones: that's the American dream."

Craig Romney promised that Latinos would play a prominent role in a Romney administration and some of those he mentioned were in the video that preceded his speech.

"We’re seeing this story play out in the lives of many other Hispanic Americans who have become leaders in the Republican Party and throughout our nation," he said, concluding his speech. "These leaders, along with Hispanics across the country, will play a vital role in the Romney-Ryan comeback, as we fight to put America back on the path to prosperity."

Loading Slideshow...
  • Republican vice presidential nominee, Rep. Paul Ryan, left and Republican presidential nominee Mitt Romney waves to delegates after his speech at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Republican presidential nominee Mitt Romney acknowledges delegates before speaking at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Jae C. Hong)

  • Republican vice presidential nominee, Rep. Paul Ryan and his wife Janna salute delegates following Republican presidential nominee Mitt Romney's speech during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. Behind is Mitt Romney and his wife Ann. (AP Photo/Charlie Neibergall)

  • Mitt Romney

    Republican presidential nominee Mitt Romney waves to delegates before speaking at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/David Goldman)

  • Mitt Romney

    Republican presidential nominee Mitt Romney acknowledges delegates before speaking at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/David Goldman)

  • Mitt Romney

    Republican presidential nominee Mitt Romney addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Mitt Romney

    Republican presidential nominee Mitt Romney hugs a supporter as he walks to the stage during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Republican presidential nominee Mitt Romney makes his way through delegates before speaking at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Ann Romney, wife of U.S. Republican presidential nominee Mitt Romney, cheers as Olympians are introduced during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Republican vice presidential nominee, Rep. Paul Ryan, right, and his wife Janna applaud during Florida Senator Marco Rubio's speech during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

  • Republican vice presidential nominee, Rep. Paul Ryan, right, along with Ann Romney, wife of U.S. Republican presidential nominee Mitt Romney, left, applaud during Florida Senator Marco Rubio's speech at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

  • Marco Rubio

    Florida Senator Marco Rubio addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charles Dharapak)

  • Florida Senator Marco Rubio addresses delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Marco Rubio

    Florida Senator Marco Rubio addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Clint Eastwood

    Actor Clint Eastwood addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Actor Clint Eastwood speaks to an empty chair while addressed delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

  • Tom Stemberg, founder and former CEO of Staples speaks to delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Bob White

    Chairman of the Romney-Ryan Campaign Bob White addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Pam Finlayson

    Pam Finlayson addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Frantz Placide and Sean Duffy, center, listen to Former Florida Governor Jeb Bush, left, as he speaks during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012.during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

  • Jeb Bush

    Former Florida Governor Jeb Bush addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Jae C. Hong)

  • Former Florida Governor Jeb Bush steps onstage to speak to delegates at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

  • Oscar Poole

    Oscar Poole from Ellijay, Ga., wears his hat at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/David Goldman)

  • Newt Gingrich, Callista Gingrich

    Former House Speaker Newt Gingrich and his wife Callista addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charles Dharapak)

  • Former House Speaker Newt Gingrich and his wife Callista walk onto the stage to speak to delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Former House Speaker Newt Gingrich and his wife Callista speak to delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Herman Cain recites the Pledge of Allegiance during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charlie Neibergall)

  • Connie Mack

    Rep. Connie Mack, R-Fla., addresses the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Senator Scott Brown, R-Mass., answers questions during a press conference in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Patrick Semansky)

  • Stagehands make final adjustments to the expanded stage where Republican presidential nominee Mitt Romney will accept his party's nomination later tonight a the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Jae C. Hong)

  • Protesters yell as Republican vice presidential nominee, Rep. Paul Ryan addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Jae C. Hong)

  • A delegate holds up a mask of Republican vice presidential nominee, Rep. Paul Ryan during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/David Goldman)

  • Jeb Bush

    FILE In this Aug. 27, 2012 file photo, former Florida Gov. Jeb Bush looks at the convention floor from the podium during a microphone check at the Republican National Convention in Tampa, Fla. (AP Photo/J. Scott Applewhite, File)

  • Stagehands make final adjustments to the expanded stage where Republican presidential nominee Mitt Romney will accept his party's nomination later tonight a the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/J. Scott Applewhite)

  • Paul Ryan

    Republican vice presidential nominee, Rep. Paul Ryan waves toward the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Paul Ryan

    Republican vice presidential nominee, Rep. Paul Ryan addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Sam Ryan yawns in his mother's arms while Janna listen to her husband Republican vice presidential nominee, Rep. Paul Ryan's speech during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. Right is Charlie Ryan. (AP Photo/Charlie Neibergall)

  • Ann Romney, wife of U.S. Republican presidential nominee Mitt Romney, applauds with Republican vice presidential nominee, Rep. Paul Ryan's wife during Paul Ryan's speech during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charlie Neibergall)

  • Republican vice presidential nominee, Rep. Paul Ryan speaks to delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012.(AP Photo/Charlie Neibergall)

  • Condoleezza Rice

    Former Secretary of State Condoleezza Rice addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charles Dharapak)

  • Susana Martinez

    New Mexico Governor Susana Martinez addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Condoleezza Rice

    Former Secretary of State Condoleezza Rice addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Mike Huckabee

    Former governor of Arkansas Mike Huckabee addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Mike Huckabee

    Former governor of Arkansas Mike Huckabee addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Mike Huckabee

    Former governor of Arkansas Mike Huckabee addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Republican vice presidential nominee, Rep. Paul Ryan's wife Janna, left, sits next to his mother Betty Ryan Douglas during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charlie Neibergall)

  • Tim Pawlenty

    Former Minnesota Governor Tim Pawlenty addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Rob Portman

    Ohio Senator Rob Portman addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • Rob Portman

    Ohio Senator Rob Portman addresses the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)

  • John Thune

    South Dakota Senator John Thune gestures to the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Charles Dharapak)

  • Rob Portman

    Ohio Senator Rob Portman waves to the delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/J. Scott Applewhite)