In his speech at the Republican National Convention on Wednesday night, former Arkansas Gov. Mike Huckabee tried to cast doubt about President Barack Obama’s faith, hinting that he might be lying or misleading Americans about his religion.

Huckabee labeled President Obama a “self-professed evangelical” — an assertion that is, first and foremost, incorrect, but one that nevertheless seems imply that Obama’s profession is different than the truth. The line that was not off-the-cuff, but in his prepared remarks:

Let me clear the air about whether guys like me would only support an evangelical. Of the four people on the two tickets, the only self-professed evangelical is Barack Obama, and he supports changing the definition of marriage, believes that human life is disposable and expendable at any time in the womb or even beyond the womb, and tells people of faith that they must bow their knees to the god of government and violate their faith and conscience in order to comply with what he calls health care.

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Claims that Obama is a Muslim are one of the baseless tactics (much like saying he is not a U.S. citizen) that far-right conservatives use to try to discredit and delegitimize Obama’s presidency.

Fresh off her convention speech Tuesday night, Ann Romney spent Wednesday wooing two of the GOP’s toughest audiences: women and Hispanic voters. At a lunch event Wednesday, Romney explained why Hispanic voters should vote for her husband. Pitching herself as “the daughter of immigrants,” Romney (who is the granddaughter of a Welsh coal miner) urged Latinos to get past “some of their biases” and come to their senses:

You’d better really look at your future and figure out who’s going to be the guy that’s going to make it better for you and your children, and there is only one answer… It really is a message that would resonate well if they could just get past some of their biases that have been there from the Democratic machines that have made us look like we don’t care about this community. And that is not true. We very much care about you and your families and the opportunities that are there for you and your families.

Hispanic voters have so far remained skeptical of Mitt Romney and the Republican Party, who stood out as the most anti-immigrant candidate during the Republican primary and touted a plan to make undocumented immigrants so uncomfortable that they would “self-deport.” He has also promised to veto the DREAM Act that would give young undocumented immigrants who came to the US as children a path to citizenship. Ann’s accusation of Democratic manipulation echoes comments made by Arizona governor Jan Brewer (R) earlier in the day, when she claimed Obama was “race-baiting” and pandering to Latinos.

Ann also offered a recent trip to Puerto Rico as evidence of her ties to the Latino community: “I had the most rocking time in Puerto Rico at a political rally than I’ve ever had in my entire life. You people really know how to party. It was crazy!”

Former Florida Senator and RNC Chairman Mel Martinez (R)

But now, some of Romney’s key advisers are expressing skepticism about how the document — and it’s conservative ideology — will play in local races. In an interview with ThinkProgress, Mel Martinez — Romney’s top Hispanic Steering Committee adviser and a former senator — argued that many voters will reject Ryan’s economic policies:

SCOTT KEYES: Do you think [Ryan's] budget will play a positive role in the campaign for Republicans? You’re former RNC chair, is that something you would recommend to, say Republican house candidates, to run on the Ryan budget and Medicare?

MARTINEZ: You know what, I think house races have their own chemistry. I would not attempt to nationalize a house race. I think you have to do that district by district, maybe in some places it makes sense to nationalize it, most places it probably doesn’t. I would say, it’s not really about the congressional races, I think it’s about the presidential when it comes to that.

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Perhaps Martinez is right to dissuade Republicans from running on the Ryan budget. The last time a Republican campaigned on a promise to support and vote for the Ryan budget — a 2011 special election in New York — Republican Jane Corwin lost handily to Democrat Kathy Hochul in one of the most reliably conservative districts in the country despite outspending Hochul by a 2-1 margin. Since 1857, just three Republicans had ever lost congressional races in the district.