U.S. Rep. Tom Tancredo says the Democratic and Republican parties are key obstacles to solving America's illegal immigration crisis."Democrats want it for votes. Republicans want it for cheap labor," Tancredo said. "Therefore it is desirable to have people coming across illegally."The Littleton Republican, who has helped ignite a national debate on immigration, said the United States must decide whether it wants a border it is willing to enforce.He made his comments Wednesday during an immigration debate on The Aaron Harber Show at KBDI-Channel 12.Also appearing on the show was former Colorado governor Dick Lamm, a Democrat who for years...