The short answer? It depends. A recent story looked at this question and found that while there was "increased voter interest and turnout in campaigns where the candidate steadily invested in Spanish-language television ads", this was not always the case.
The bottom line is that researchers "don’t know a lot about Spanish language ads”. Of the little that is known so far, it is recognized that "the right messaging matters".
The full story can be found on the NBC News website.
Do you think political ads in Spanish motivate Hispanics to make it to the polls? Let us know is the comments below!