illegally just do give birth. >> if a tourist comes to visit the united states and have a child, that child is an american citizen. if you go to france or inningland on vacation and you have a child there, you're not a british or a french citizen. it makes no sense to me to sell tourist visas so people can have babies in this country and earn citizenship that way. >> democrats say this is just election-year rhetoric. and when senate majority leader, harry reid, was asked about republicans who want to change the constitution, he made his point by quoting a conservative columnist who opposes the idea. >> they have either taken leave of their senses or their principles. >> it's very difficult to change the constitution it requires approval by two-thirds of both the house and senate, as well as ratification by three-quarters of the states. because of that, it's seen as very unlikely to happen. brianna keilar, cnn, washington. >> for two viewpoints on immigration and the 14th amendment, we turn to tom tancredo from colorado, he