The Colorado Democrat was traveling and unavailable to attend the news conference, in which Democrats Charles Schumer of New York, Dick Durbin of Illinois and Robert Menendez of New Jersey, and Republicans John McCain of Arizona and Marco Rubio of Florida discussed the plan.
Republican Sens. Lindsey Graham of South Carolina and Jeff Flake of Arizona are the other two lawmakers working to craft the plan, which has yet to be crafted into a bill.
Bennet's office released a statement after the event.
"Several weeks ago, a collection of bipartisan leaders across Colorado came together to sign the Colorado Compact and send a message to Washington that it was time for comprehensive immigration reform," Bennet was quoted as saying. "The principles we released today reflect the spirit and intention of that effort. There is still a difficult road ahead, but I look forward to continuing this bipartisan work in the coming weeks and months."
The senators unveiled their plan the day before President Barack Obama discusses his ideas to overhaul the immigration system. He's traveling to Las Vegas to do that.
The Senate plan calls for beefing up border security, giving businesses more tools to verify their employees' immigration status, and streamlining the process for future immigrants to enter the U.S. Most controversially, it would create a path to citizenship for 11 million undocumented workers living in this country.
To read the Senate framework, click: http://issuu.com/michaelbennet/docs/final_bipartisan_framework_for_immigration_reform
By RAJU CHEBIUM, Gannett Washington Bureau
Contributing: USA TODAY