House Budget Committee chairman Paul RyanPaul Davis RyanMcConnell: 'Whoever gets to 60 wins' on immigration Overnight Defense: Latest on spending fight - House passes stopgap with defense money while Senate nears two-year budget deal | Pentagon planning military parade for Trump | Afghan war will cost B in 2018 House passes stopgap spending measure with defense money MORE (R-Wis.) supports Sen. Marco RubioMarco Antonio RubioTrump must send Russia powerful message through tougher actions McCain, Coons immigration bill sparks Trump backlash Taking a strong stance to protect election integrity MORE's (R-Fla.) immigration reform blueprint.

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"Sen. Rubio is exactly right on the need to fix our broken immigration system," Ryan wrote on his Facebook on Monday. "I support the principles he’s outlined: modernization of our immigration laws; stronger security to curb illegal immigration; and respect for the rule of law in addressing the complex challenge of the undocumented population. Our future depends on an immigration system that works."

Ryan's endorsement gives a boost to Rubio's efforts. Both Republicans are seen as potential GOP candidates for president in 2016. 

Rubio outlined his preferred approach to immigration reform in a recent interview with The Wall Street Journal. He argued the best way to tackle immigration reform would be through passing a series of bills instead of a single omnibus package. 

Rubio also wants undocumented immigrants to come forward and go through a process to get legal status that could include background checks, paying a fine and back taxes and possibly community service. That process also includes the option of eventually becoming a citizen. 

Legislators in both the House and the Senate have begun quiet negotiations on immigration reform. Rep. Luis GutierrezLuis Vicente GutierrezRep. Gutiérrez: 'Complete betrayal' if Pelosi backs budget caps deal without DACA Two states of the union The immigration fight isn't really about the Dreamers — it's all politics MORE (D-Ill.) a leading Democrat on immigration reform, has held discussions with Ryan on the topic.