Employed immigrants: Senate Judiciary Chairman Arlen Specter, R-Pa., has proposed legislation that would allow immigrants in the United States illegally to stay as long as they are employed and renew their visas every two years.

Guest workers: Sen. John Cornyn, R-Texas, has legislation that would create a guest worker program but require immigrants here illegally to return home before they are eligible for the program.

Stay and pay: Sen. John McCain, R-Ariz., proposes a bill that would allow undocumented immigrants to stay in the United States and, after six years, apply for a green card if they can pass a criminal background check and pay a $1,000 fine.

Agricultural workers: Sen. Larry Craig, R-Idaho, proposed legislation that would tweak the farm worker visa program to make it easier for agricultural workers to stay in the United States, a bill suppored by 31 Democrats and 17 Republicans.

Military de-fence: Legislation proposed by three senators, including one Democrat, would provide for military resources to guard the borders and authorize the construction of a double-layered fence along the entire length of the U.S.-Mexican border.

Border security: The House passed a bill in December that would boost border security and strengthen enforcement of immigration laws. Utah's three House members supported the legislation.