(CNN) -- Marlene Monteolivo was a Democrat for many years, then a Republican. Now she's registered as a nonpartisan voter in Nevada who wants to support a candidate who will make the economy better. The Colombia native, who works for a Las Vegas social services agency, says she's leaning toward GOP challenger Mitt Romney. She likes his business sensibilities. But there's a hiccup. And it's a big one called immigration. It's the 200-pound anchor on the Republican message, say experts in Nevada politics. Many Latino voters will tell you "It's immigration, stupid," in the vein of the famously coined phrase on the economy during Bill Clinton's 1992 campaign.Some Latinos in hard-hit Nevada are considering voting for Mitt RomneyBut for many, immigration is a deciding issueOne GOP activist says his party has not done enough to connect with LatinosHe says President Barack Obama's appearance with Mexican band Mana was great strategy 
 Question:If the Republicans were able to effectively lay out their economic message, they might have a chance in getting Latinos to overlook what they see as problems in _ immigration policy, Herzik says.
Republican