NEW YORK -- Sen. Marco Rubio (R-Fla.) said Tuesday he was comfortable with Mitt Romney's decision to end President Obama's deferred action program upon entering office because he believes the Republican nominee will put in place other reforms by the time the program expires. The senator, one of the leading Republican voices on immigration reform, has called for a reform plan that many say prompted Obama's policy, which grants a special two-year deportation reprieve to young immigrants between the ages of 16 and 30 brought here as children illegally, provided they have a clean criminal record and are currently attending or have graduated high school.